CN105244225B - Liquid level switch and air conditioner - Google Patents
Liquid level switch and air conditioner Download PDFInfo
- Publication number
- CN105244225B CN105244225B CN201510677147.9A CN201510677147A CN105244225B CN 105244225 B CN105244225 B CN 105244225B CN 201510677147 A CN201510677147 A CN 201510677147A CN 105244225 B CN105244225 B CN 105244225B
- Authority
- CN
- China
- Prior art keywords
- level switch
- liquid
- float
- receiving device
- signal receiving
- Prior art date
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- 239000007788 liquid Substances 0.000 title claims abstract description 73
- 230000008859 change Effects 0.000 claims abstract description 19
- 230000005540 biological transmission Effects 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 238000004378 air conditioning Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 6
- 230000004888 barrier function Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- 230000035945 sensitivity Effects 0.000 abstract description 7
- 238000001514 detection method Methods 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/18—Switches operated by change of liquid level or of liquid density, e.g. float switch
Landscapes
- Level Indicators Using A Float (AREA)
Abstract
The invention aims to provide a liquid level switch, which mainly solves the problems of low sensitivity, small application range and poor reliability of the existing liquid level switch. The liquid level switch comprises a floater, a signal transmitting device and a signal receiving device for receiving a transmitting signal of the signal transmitting device; the signal receiving device has a receiving state and a non-receiving state, and the liquid level switch is in different on-off states according to different states of the signal receiving device; the position change of the floater can change the signal receiving state of the signal receiving device; the liquid level switch also comprises a shell and a mounting bracket used for mounting the signal transmitting device and the signal receiving device, a tubular structure is arranged in the shell, a channel is formed in the tubular structure, the floater is arranged in the channel and can move along the channel, the tubular structure is connected with the shell in a sealing way, and the mounting bracket is arranged between the shell and the tubular structure. The liquid level switch provided by the invention has high detection sensitivity and good stability. The invention also provides an air conditioner adopting the liquid level switch.
Description
Technical field
The present invention relates to Technology of Level Detection field, and in particular to a kind of liquid-level switch and the sky with the liquid-level switch
Adjust.
Background technology
Liquid-level switch used in air conditioner industry is made up of spacing back-up ring, float, cradling piece, wire at present.When its docking
When water level in water pond is detected, water level rises to certain altitude, and float moves upwards in the presence of buoyancy, so as to influence
Potential change in wire, the unlatching of liquid-level switch is realized, produce high level signal 1；Work as water level decreasing, float is downward along cradling piece
Motion, so as to influence wire potential change again, the closing of liquid-level switch is realized, produces low level signal 0.
Although above-mentioned liquid level switch structure is simple, there are the following problems for it：
1st, sensitivity is relatively low；
2nd, produce and require that water level is higher when opening (high level) signal, can not be used for low water level detection, use range
It is limited；
3rd, float is external, is easily failed when by external force, reliability is relatively low.
A kind of new liquid-level switch is provided in view of the above-mentioned problems, needing badly, to solve sensitivity existing for existing liquid-level switch
Low, the problem of scope of application is small, poor reliability.
The content of the invention
In view of this, the present invention provides a kind of high sensitivity, stability good liquid-level switch.
To use following technical scheme up to this purpose, the present invention：
A kind of liquid-level switch, including float, in addition to sender unit and for receiving the sender unit
Transmission signal signal receiving device；
The signal receiving device has reception state and non-reception state, and the state being according to it is different, liquid level
Switch is in different on off operating modes；
The change in location of the float can change the signal reception state of the signal receiving device；
The liquid-level switch also includes shell and for installing the sender unit and the signal receiving device
Mounting bracket, tubular structure is provided with the shell, passage is formed in the tubular structure, the float is arranged on described logical
It can move in road and along the passage, the tubular structure connects with the shell for closing, and the mounting bracket is arranged at institute
State between shell and the tubular structure, one end of the shell is provided with the water inlet connected with the passage, another end seal
Close, the blind end of the shell is closed by closure, the wire harness warp of the sender unit and the signal receiving device
The closure passes the liquid-level switch.
Preferably, the float is between the sender unit and the signal receiving device, the signal hair
Injection device is oppositely arranged with the signal receiving device, is not connect when under barrier effect of the signal receiving device in the float
When receiving the transmission signal, the liquid-level switch is off-state, when the float is moved to so that the signal receives dress
Put when receiving the transmission signal, the liquid-level switch is conducting state.
Preferably, the position of the sender unit and the signal receiving device in the mounting bracket can
Adjust.
Preferably, the float is light-proof material, and the tubular structure is light transmissive material；
The sender unit is illuminating part, and the signal receiving device includes circuit board and connected with the circuit board
The photo resistance connect.
Preferably, the sender unit and the signal receiving device are respectively positioned on the same side of the float, work as institute
When stating the transmission signal of sender unit and reflecting through the float and received by the signal receiving device, the liquid-level switch
For off-state, when the float is moved to so that the transmission signal of the sender unit will not be fallen on the float
When, the liquid-level switch is conducting state.
Another object of the present invention is to provide a kind of to have above-mentioned liquid-level switch, can accurately detect liquid level in drip tray
Air-conditioning.It is specific as follows：
A kind of air-conditioning, liquid-level switch as described above is provided with the drip tray of the air-conditioning.
The beneficial effects of the invention are as follows：
1st, liquid-level switch provided by the invention is received by the change in location of float to change the signal of signal receiving device
State, and then change the on off operating mode of liquid-level switch, detection sensitivity is high, and stability is good.
2nd, air-conditioning provided by the invention is as a result of above-mentioned liquid-level switch, liquid level that can accurately in detector drip tray
Highly, the use reliability of air-conditioning is improved.
Brief description of the drawings
By the description to the embodiment of the present invention referring to the drawings, above-mentioned and other purpose of the invention, feature and
Advantage will be apparent from, in the accompanying drawings：
Structural representation when Fig. 1 is the liquid-level switch off-state that the specific embodiment of the invention provides；
Structural representation when Fig. 2 is the liquid-level switch conducting state that the specific embodiment of the invention provides；
Fig. 3 is that the liquid-level switch that the specific embodiment of the invention provides removes the top view after closure.
In figure, 1, float；2nd, sender unit；3rd, shell；31st, water inlet；4th, tubular structure；5th, passage；6th, install
Support；7th, signal receiving device；8th, closure；9th, wire harness.
Embodiment
Below based on embodiment, present invention is described, but the present invention is not restricted to these embodiments.Under
It is detailed to describe some specific detail sections in the literary detailed description to the present invention.Do not have for a person skilled in the art
The description of these detail sections can also understand the present invention completely.In order to avoid obscuring the essence of the present invention, known method, mistake
The not narration in detail of journey, flow, element.
Illustrate the embodiment of the liquid-level switch of the present invention referring to Fig. 1 to Fig. 3.
Liquid-level switch provided by the invention includes float 1, sender unit 2 and for reception signal emitter 2
Transmission signal signal receiving device 7.Signal receiving device 7 at least has reception state and non-reception state, reception state
The state of transmission signal is received, non-reception state is to be not received by the state of transmission signal, according to signal receiving device 7
The state being in is different, and liquid-level switch is in different on off operating modes.And the change in location of float 1 can change signal and receive dress
7 signal reception state is put, so as to which liquid-level switch can change the signal of signal receiving device 7 by the change in location of float 1
Reception state, and then change the on off operating mode of liquid-level switch, it is converted into low and high level compared to existing mechanical location
Change, the liquid-level switch detection sensitivity that the present invention improves is higher, and stability is more preferable.
The relative position relation of float 1, sender unit 2 and signal receiving device 7 can float as shown in Figure 3
Between sender unit 2 and signal receiving device 7, sender unit 2 is oppositely arranged son 1 with signal receiving device 7.
As shown in figure 1, when liquid level is relatively low, the position of float 1 is relatively low, so as to which the transmission signal of sender unit 2 is by float 1
Stop, signal receiving device 7 is non-reception state, and liquid-level switch is off.When liquid level gradually rises, float 1 exists
Also gradually risen under buoyancy, when float 1, which is moved to, no longer stops transmission signal, signal receiving device 7 is changed into receiving shape
State, now liquid-level switch conducting.Certainly, the relative position relation of float 1, sender unit 2 and signal receiving device 7
Can be that sender unit 2 and signal receiving device 7 are respectively positioned on the same side of float 1, when liquid level is relatively low, the position of float 1
Put relatively low, the transmission signal of sender unit 2 reflects through float 1 and received by signal receiving device 7, and liquid-level switch is disconnected
Open state, when liquid level gradually rises, float 1 also gradually rises under buoyancy, when float 1 is moved to so that the signal
When the transmission signal of emitter 2 will not be fallen on the float 1, the liquid-level switch is conducting state.
In addition, it can be realized low by adjusting the relative altitude of float 1, sender unit 2 and signal receiving device 7
Water level detecting, do not limited by water level height, use range is wider.
Specifically, liquid-level switch includes shell 3, one end of shell 3 is provided with water inlet 31, and the other end is closed, in shell 3
The passage 5 connected with water inlet 31 is provided with, float 1 is arranged in passage 5 and can moved along passage 5.Because float 1 is arranged on
In shell 3, embedding structure make it that float 1 is not higher by External force interference, reliability.
Preferably, tubular structure 4 is provided with shell 3, the passage 5 of accommodating float 1 is formed in tubular structure 4.Tubulose knot
Structure 4 connects with shell 3 for closing, can prevent water from entering in the space between tubular structure 4 and shell 3.In tubular structure 4 and outside
Be provided with mounting bracket 6 between shell 3, sender unit 2 and signal receiving device 7 be installed in mounting bracket 6 and its
Position in mounting bracket 6 is adjustable, for example, chute is set in mounting bracket 6, sender unit 2 and signal receiving device 7
Arbitrary height position can be fixed on along slide and by fastener, or, highly different peaces is set in mounting bracket 6
Be loaded groove, and the neck that different height may be selected in sender unit 2 and signal receiving device 7 is installed.
As a kind of preferred embodiment, sender unit 2 is illuminating part, more preferably light emitting diode, and signal connects
Receiving apparatus 7 includes circuit board and the photo resistance being connected with circuit board, and float 1 is light-proof material, and tubular structure 4 is printing opacity
Material.When liquid level is relatively low, float 1 is in relatively low position, and the optical signal that light emitting diode is sent can pass through tubular structure 4 simultaneously
Stopped by float 1, when liquid level gradually rises, the position of float 1 also gradually rises, when float 1 is no longer able to block optical signal,
Optical signal is irradiated in photo resistance through tubular structure 4 so that the resistance of photo resistance is changed, and circuit board is opened to liquid level
Close and send signal, liquid-level switch carries out the change of on off operating mode.Certainly, sender unit 2 and signal receiving device 7 do not limit to
In above-mentioned form, other can realize the structure that signal transmitting receives and signal can be stopped by float 1, if sending
With the device etc. for receiving electromagnetic signal.
Further, tubular structure 4 can be structure as a whole with shell 3, be easy to process.
Further, the blind end of shell 3 is closed by closure 8, sender unit 2 and signal receiving device 7
The sealed lid 8 of wire harness 9 passes liquid-level switch.
For above-mentioned liquid-level switch, present invention also offers a kind of air-conditioning, it is provided with the drip tray of the air-conditioning above-mentioned
Liquid-level switch, the liquid level that liquid-level switch can accurately in detector drip tray, so as to improve the use reliability of air-conditioning.
In addition, it should be understood by one skilled in the art that provided herein accompanying drawing be provided to explanation purpose, and
What accompanying drawing was not necessarily drawn to scale.
It will also be appreciated that example embodiment is provided, so that the disclosure is comprehensive, and its scope is fully passed on
To those skilled in the art.Many specific details (such as particular elements, example of apparatus and method) are presented to provide to this
Disclosed comprehensive understanding.It will be apparent to one skilled in the art that specific detail need not be used, example embodiment can be with much not
Same form is carried out, and example embodiment is understood not to limit the scope of the present disclosure.In some example embodiments,
Well-known device structure and widely-known technique are not described in.
When an element or layer be mentioned as another element or layer " on ", " being engaged to ", " being connected to " or " coupled
To " another element or layer when, it directly can be engaged on another element or layer, directly, be connected or coupled to another element or
Layer, or intermediary element or layer may be present.By contrast, when an element be mentioned as " direct " another element or layer " on ",
When " being bonded directly to ", " being directly coupled to " or " being directly coupled to " another element or layer, intermediary element may not be present
Or layer.Other words for describing relation between element should be explained in a similar manner (for example, " between " with " directly existing
Between ", " neighbouring " and " being directly adjacent to " etc.).As used herein, term "and/or" includes the listed of one or more associations
Any or all combinations in project.
Although term first, second, third, etc. can be used for describing each element, part, region, floor and/or area herein
Section, but these elements, part, region, layer and/or section should not be limited by these terms.These terms can be only used for by
One element, part, region, layer or section distinguish with another element, region, layer or section.Such as " first ", " second "
Term and other numerical value terms do not mean that order or order when used herein, unless clearly indicated by the context.Thus, below
The first element, part, region, layer or the section discussed is referred to alternatively as the second element, part, region, layer or section, without departing from
The teaching of example embodiment.In addition, in the description of the invention, unless otherwise indicated, " multiple " are meant that two or two
More than.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for those skilled in the art
For, the present invention can have various changes and change.All any modifications made within spirit and principles of the present invention, it is equal
Replace, improve etc., it should be included in the scope of the protection.
Claims (6)
1. a kind of liquid-level switch, including float (1), it is characterised in that：Also include sender unit (2) and for receiving
State the signal receiving device (7) of the transmission signal of sender unit (2)；
The signal receiving device (7) has reception state and non-reception state, and the state being according to it is different, and liquid level is opened
Pass is in different on off operating modes；
The change in location of the float (1) can change the signal reception state of the signal receiving device (7)；
The liquid-level switch also includes shell (3) and for installing the sender unit (2) and the signal receiving device
(7) mounting bracket (6), the shell (3) is interior to be provided with tubular structure (4), and passage (5) is formed in the tubular structure (4),
The float (1) is arranged in the passage (5) and can be mobile along the passage (5), the tubular structure (4) and the shell
(3) it is arranged at for closing connection, the mounting bracket (6) between the shell (3) and the tubular structure (4), the shell
(3) one end is provided with the water inlet (31) connected with the passage (5), other end closing, and the blind end of the shell (3) leads to
Cross closure (8) to close, the wire harness (9) of the sender unit (2) and the signal receiving device (7) is through the closure
(8) liquid-level switch is passed.
2. liquid-level switch according to claim 1, it is characterised in that：The float (1) is located at the sender unit
(2) between the signal receiving device (7), the sender unit (2) is relative with the signal receiving device (7) to be set
Put, it is described when the signal receiving device (7) does not receive the transmission signal under the barrier effect of the float (1)
Liquid-level switch is off-state, when the float (1) is moved to so that the signal receiving device (7) receives the transmitting letter
Number when, the liquid-level switch is conducting state.
3. liquid-level switch according to claim 1 or 2, it is characterised in that：The sender unit (2) and the letter
Number position of the reception device (7) in the mounting bracket (6) is adjustable.
4. liquid-level switch according to claim 1, it is characterised in that：The float (1) is light-proof material, the tubulose
Structure (4) is light transmissive material；
The sender unit (2) is illuminating part, the signal receiving device (7) include circuit board and with the circuit board
The photo resistance of connection.
5. liquid-level switch according to claim 1, it is characterised in that：The sender unit (2) and the signal connect
Receiving apparatus (7) is respectively positioned on the same side of the float (1), when the transmission signal of the sender unit (2) is through the float
(1) when reflecting and being received by the signal receiving device (7), the liquid-level switch is off-state, when the float (1) is mobile
To when causing the transmission signal of the sender unit (2) not fall on the float (1), the liquid-level switch is conducting
State.
A kind of 6. air-conditioning, it is characterised in that：Set in the drip tray of the air-conditioning just like described in any one of claim 1 to 5
Liquid-level switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510677147.9A CN105244225B (en) | 2015-10-15 | 2015-10-15 | Liquid level switch and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510677147.9A CN105244225B (en) | 2015-10-15 | 2015-10-15 | Liquid level switch and air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105244225A CN105244225A (en) | 2016-01-13 |
| CN105244225B true CN105244225B (en) | 2018-01-02 |
Family
ID=55041826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510677147.9A Active CN105244225B (en) | 2015-10-15 | 2015-10-15 | Liquid level switch and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105244225B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109506327B (en) * | 2018-10-24 | 2021-10-08 | 朱笑笑 | Air conditioner for meeting room capable of being automatically closed based on state of meeting desktop |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4917135A (en) * | 1988-02-29 | 1990-04-17 | Magnetrol International | Liquid level regulator device |
| CN2117595U (en) * | 1992-05-04 | 1992-09-30 | 高秀珍 | Photoelectrically liquid level controlling valve with float |
| CN2804813Y (en) * | 2005-05-31 | 2006-08-09 | 高汝培 | Photoelectric water-level detecting device |
| CN201637015U (en) * | 2010-01-19 | 2010-11-17 | 中山市爱美泰电器有限公司 | Heat pump air conditioner integrating indoor air humidification and waste heat recycling |
| CN205092189U (en) * | 2015-10-15 | 2016-03-16 | 珠海格力电器股份有限公司 | Liquid level switch and air conditioner |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2214598Y (en) * | 1994-12-02 | 1995-12-06 | 于小乐 | vertical tubes 3-reture verticle boiler |
-
2015
- 2015-10-15 CN CN201510677147.9A patent/CN105244225B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4917135A (en) * | 1988-02-29 | 1990-04-17 | Magnetrol International | Liquid level regulator device |
| CN2117595U (en) * | 1992-05-04 | 1992-09-30 | 高秀珍 | Photoelectrically liquid level controlling valve with float |
| CN2804813Y (en) * | 2005-05-31 | 2006-08-09 | 高汝培 | Photoelectric water-level detecting device |
| CN201637015U (en) * | 2010-01-19 | 2010-11-17 | 中山市爱美泰电器有限公司 | Heat pump air conditioner integrating indoor air humidification and waste heat recycling |
| CN205092189U (en) * | 2015-10-15 | 2016-03-16 | 珠海格力电器股份有限公司 | Liquid level switch and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105244225A (en) | 2016-01-13 |
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