CN208314581U - temperature electronic switch - Google Patents
temperature electronic switch Download PDFInfo
- Publication number
- CN208314581U CN208314581U CN201820718906.0U CN201820718906U CN208314581U CN 208314581 U CN208314581 U CN 208314581U CN 201820718906 U CN201820718906 U CN 201820718906U CN 208314581 U CN208314581 U CN 208314581U
- Authority
- CN
- China
- Prior art keywords
- liquid crystal
- light
- temperature
- crystal block
- sensitive device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Liquid Crystal (AREA)
Abstract
The utility model relates to switching technique field, in particular to a kind of temperature electronic switch.Temperature electronic switch includes luminescent device, light-sensitive device and liquid crystal block, and optical channel is equipped between the luminescent device and the light-sensitive device, and the liquid crystal block is set in the optical channel；The liquid crystal block is the liquid crystal block for changing its light transmittance according to temperature change；According to whether receiving optical signal that the luminescent device issues and through the liquid crystal block, realization ON/OFF controls the light-sensitive device.Change the light transmission state of itself by liquid crystal temperature sensor, determine that can light-sensitive device receive the optical signal in optical channel, so that temperature electronic switch is in open circuit or closed circuit, transparent and opaque reversible change can be presented at 0.2 DEG C of temperature change for liquid crystal, the operating temperature and recovery temperature for aiming to solve the problem that existing temperature switch differ greatly, operating temperature and the recovery temperature temperature difference are more than 10 DEG C, and the problem that mechanical action reliability is not high.
Description
Technical field
The utility model relates to switching technique field, in particular to a kind of temperature electronic switch.
Background technique
Temperature control is widely used, and basic logic is " difference of the temperature sensing-between judgement Current Temperatures and set temperature
It is iso- that heating or refrigeration are controlled to adjust according to difference ", wherein temperature sensing is to realize temperature controlled key.
Existing temperature switch is fairly simple, such as bimetallic strip temperature switch, but its operating temperature and recovery temperature phase
Difference is very big, and operating temperature and the recovery temperature temperature difference are more than 10 DEG C, and mechanical action reliability is not high, uses it as temperature sensing
It will lead to final controllable temperature with control to fluctuate in a big way, seriously restrict its application.
Utility model content
In view of the shortcomings of the prior art, being changed the utility model proposes a kind of temperature electronic switch by liquid crystal temperature sensor
The light transmission state of itself allows light-sensitive device whether to receive the optical signal in optical channel, so that temperature electronic switch is in open circuit
It is or closed circuit, it is intended to which that the operating temperature and recovery temperature for solving existing temperature switch differ greatly, operating temperature and recovery temperature
The temperature difference is more than 10 DEG C, and the problem that mechanical action reliability is not high.
The utility model proposes technical solution be:
A kind of temperature electronic switch, including luminescent device, light-sensitive device and liquid crystal block, the luminescent device and light-sensitive device
Between be equipped with optical channel, the liquid crystal block be set to the optical channel in；
The liquid crystal block is the liquid crystal block for changing its light transmittance according to temperature change；
The light-sensitive device is according to whether receiving that the luminescent device issues and believing through the light of the liquid crystal block
Number, realize ON/OFF control.
Further, the liquid crystal block is set in the direct projection optical path between the luminescent device and the light-sensitive device, institute
Liquid crystal root tuber is stated according to itself light transmittance, the optical signal for stopping the luminescent device to issue in the optical channel passes through, or
The optical signal for allowing the luminescent device to issue in the optical channel is through light-sensitive device described in the liquid crystal block directive.
Further, the optical channel has reflective surface, and the liquid crystal block is set on the reflective surface, the liquid crystal root tuber
According to the light transmittance of itself, the optical signal for stopping the luminescent device to issue in the optical channel reflects on the reflective surface,
Or the optical signal for allowing the luminescent device to issue in the optical channel is penetrated through the liquid crystal block in the reflective surface
To the light-sensitive device.
Further, the liquid crystal block is by being covered on the Formation of liquid crystals of the reflective surface.
Further, when the temperature sensor of the liquid crystal block is higher than its phase transition temperature, the liquid crystal block is in transparence
The optical channel is connected in state；
When the temperature sensor of the liquid crystal block is below or equal to its phase transition temperature, the liquid crystal block is in opaque shape
State is closed the optical channel.
Further, when the optical channel is connected, lightray propagation that the luminescent device issues to the photosensor
Part, when the light-sensitive device receives optical signal, the light-sensitive device itself is in closed circuit state in Low ESR, makes the temperature
It spends electronic switch and is in closed circuit；
In optical channel closure, the optical signal that the luminescent device issues does not travel to the light-sensitive device；
When the light-sensitive device does not receive optical signal, the light-sensitive device itself is in open-circuit condition in high impedance,
Make the temperature electronic switch in open circuit.
Further, the liquid crystal of the liquid crystal block is thermal induced phase transition liquid crystal.
Further, when the luminescent device is tunable light source, the luminescent device issues the optical signal of strength of stability.
According to above-mentioned technical solution, the utility model is the utility model has the advantages that change the light transmission of itself by liquid crystal temperature sensor
State, makes whether light-sensitive device receives the optical signal in optical channel, so that temperature electronic switch is in open circuit or closed circuit, liquid crystal
Transparent and opaque reversible change can be presented at 0.2 DEG C of temperature difference, thus the variation of the Push And Release of temperature electronic switch
Temperature can control within the scope of 0.2 DEG C, it is intended to and the operating temperature and recovery temperature for solving existing temperature switch differ greatly,
Operating temperature and the recovery temperature temperature difference are more than 10 DEG C, and the problem that mechanical action reliability is not high.
Detailed description of the invention
Fig. 1 is the light path schematic diagram using temperature electronic provided by the embodiment of the utility model switch；
Fig. 2 is another light path schematic diagram using temperature electronic provided by the embodiment of the utility model switch.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
As shown in Figure 1, the utility model embodiment also proposes that a kind of temperature electronic switch 1, temperature electronic switch 1 include hair
Optical device 11, liquid crystal block 12 and light-sensitive device 13.
Optical channel 14 is equipped between luminescent device and light-sensitive device, liquid crystal block is set in optical channel 14.
Optical signal of the luminescent device 11 for sending is propagated in optical channel 14.
In the present embodiment, luminescent device 11 includes light emitting diode, two pole of incandescent lamp, EL luminescent device 11 or laser
Pipe.
Optical channel 14 is set between luminescent device 11 and light-sensitive device 13, and the optical signal that luminescent device 11 issues passes through
Optical channel 14 can travel to light-sensitive device 13.
Liquid crystal block 12 is the liquid crystal block for changing its light transmittance according to temperature change.
In the present embodiment, optical channel 14 has reflective surface 141, and liquid crystal block 12 is set on reflective surface 141, and liquid crystal block 12
According to the light transmittance of itself, the optical signal for stopping luminescent device 11 to issue in optical channel 14 reflects on reflective surface 141, Huo Zhe
The optical signal permeate crystal block 12 for allowing luminescent device 11 to issue in optical channel 14 reflects directive light-sensitive device in reflective surface 141.?
In the present embodiment, liquid crystal block 12 is affixed on reflective surface 141, and the other side of reflective surface 141 is affixed on object under test, to make liquid crystal
The temperature of the induction object under test of block 12.
In some embodiments, as shown in Fig. 2, liquid crystal block 12 is set to the direct projection between luminescent device 11 and light-sensitive device 13
In optical path, according to itself light transmittance, the optical signal for stopping luminescent device 11 to issue in optical channel 14 passes through liquid crystal block 12, or
The 12 directive light-sensitive device 13 of optical signal permeate crystal block that person allows luminescent device 11 to issue in optical channel 14.Further, liquid
The lower end of crystal block 12 is affixed on object under test, to make the temperature of the induction object under test of liquid crystal block 12.
Further, liquid crystal block 12 changes its light transmittance, conducting or closure optical channel 14 for temperature sensor.
Liquid crystal block 12 is set in optical channel 14, and liquid crystal block 12 changes the light transmittance of itself by temperature sensor, according to liquid crystal
12 light transmission state of block is different, and optical channel 14 is made to be on or be closed.
Specifically, 12 temperature sensor of liquid crystal block is the first temperature, and light transmission state is light-permeable state, leads optical channel 14
Logical, optical signal can propagate to light-sensitive device 13 through optical channel 14.
12 temperature sensor of liquid crystal block be second temperature, light transmission state be can not light transmission state, make optical channel 14 be closed, light
Signal can not propagate to light-sensitive device 13 through optical channel 14.
When the temperature sensor of liquid crystal block 12 is higher than its phase transition temperature, liquid crystal block 12 is in pellucidity, and optical channel is connected
14。
When the temperature sensor of liquid crystal block 12 is below or equal to its phase transition temperature, opaque shape is in by liquid crystal block 12
State is closed optical channel 14.
Phase transition temperature refers to critical-temperature when substance changes between different phases.
In the present embodiment, the pellucidity of liquid crystal block 12 is light-permeable state, and the opaque state of liquid crystal block 12 is can not
Light transmission state.
When the temperature sensor of liquid crystal block 12 is higher than phase transition temperature, liquid crystal block 12 is in pellucidity, the liquid of pellucidity
Crystal block 12 can allow light to pass through, and be conducting optical channel 14, and the optical signal that luminescent device 11 issues can be passed by optical channel 14
It is multicast to light-sensitive device 13.
When the temperature sensor of liquid crystal block 12 is lower than phase transition temperature, liquid crystal block 12 is in opaque state, opaque state
Liquid crystal block 12 light can not be allowed to pass through, be closure optical channel 14, luminescent device 11 issue optical signal pass through optical channel 14
Light-sensitive device 13 can not be traveled to.
When the temperature sensor of liquid crystal block 12 is equal to phase transition temperature, liquid crystal block 12 is in opaque state, opaque state
Liquid crystal block 12 light can not be allowed to pass through, be closure optical channel 14, luminescent device 11 issue optical signal pass through optical channel 14
Light-sensitive device 13 can not be traveled to.
In the present embodiment, when liquid crystal block 12 is in opaque state, liquid crystal block 12 is in black.
In the present embodiment, the liquid crystal of liquid crystal block 12 is temperature sensitivity liquid crystal, and specifically, the liquid crystal of liquid crystal block 12 is thermotropic
Liquid crystal.
In the present embodiment, transparent and opaque reversible change can be presented at 0.2 DEG C of temperature difference for liquid crystal.
Temperature electronic switch changes its light transmission shape by being covered in 12 temperature sensor of liquid crystal block of reflective surface in optical channel 14
State, conducting or closure optical channel 14.
Optical channel 14 has reflective surface, and liquid crystal block 12 is by being covered on the Formation of liquid crystals of reflective surface.Liquid crystal block 12 changes it thoroughly
Light state, makes whether reflective surface is capable of reflecting light signal, to be connected or be closed optical channel 14.
Liquid crystal block 12 is in pellucidity, and the liquid crystal block 12 of pellucidity can allow light to pass through, and optical signal passes through transparence
The liquid crystal block 12 of state travels to reflective surface, and reflective surface reflects optical signal, is conducting optical channel 14, and luminescent device 11 is sent out
Optical signal out can travel to light-sensitive device 13 by optical channel 14.
Liquid crystal block 12 is in opaque state, and the liquid crystal block 12 of opaque state can not allow light to pass through, and optical signal passes through
The liquid crystal block 12 of opaque state is stopped by the liquid crystal block 12 of opaque state, propagates less than reflective surface, reflective surface cannot be by light
Signal is reflected, and is closure optical channel 14, and the optical signal that luminescent device 11 issues can not be traveled to by optical channel 14
Light-sensitive device 13.
Light-sensitive device 13 is according to whether receive the sending of luminescent device 11 and permeate crystal block 12 optical signal, realization
ON/OFF control.
Light-sensitive device 13 is used to whether receive the optical signal in optical channel 14, on or off temperature electronic switch, wherein
The optical signal is the sending of luminescent device 11, and is permeate crystal block 12.
When optical channel 14 is connected, light-sensitive device 13 receives the optical signal in optical channel 14, opens temperature electronic switch, i.e.,
Temperature electronic switch is in closed circuit.
When optical channel 14 is closed, light-sensitive device 13 does not receive the optical signal in optical channel 14, closes temperature electronic switch,
That is temperature electronic switch is in open circuit.
When optical channel 14 is connected, the lightray propagation that luminescent device 11 issues is to light-sensitive device 13, when light-sensitive device 13
When receiving optical signal, light-sensitive device 13 itself is in closed circuit state in Low ESR, makes temperature electronic switch in closed circuit.
When optical channel 14 is closed, the optical signal that luminescent device 11 issues does not travel to light-sensitive device 13；Work as light-sensitive device
13 when not receiving optical signal, and light-sensitive device 13 itself be in open-circuit condition in high impedance, makes temperature electronic switch in opening a way.
When optical channel 14 is connected, the optical signal that luminescent device 11 issues can travel to light-sensitive device through optical channel 14
13, when light-sensitive device 13 receives optical signal, light-sensitive device 13 converts optical signals to electric signal, makes light-sensitive device 13 itself
It is in closed circuit state in Low ESR, to make temperature electronic switch in closed circuit.
When optical channel 14 is closed, the optical signal that luminescent device 11 issues can not travel to light-sensitive device through optical channel 14
13, when light-sensitive device 13 does not receive optical signal, light-sensitive device 13 does not carry out optical signal conversion, makes the light-sensitive device 13 itself be in
High impedance is in open-circuit condition, to make temperature electronic switch in open circuit.
In the present embodiment, when luminescent device 11 is tunable light source, luminescent device issues the optical signal of fixing intensity.
In conclusion changing the light transmission state of itself by liquid crystal temperature sensor, make whether light-sensitive device 13 receives light
Optical signal in channel 14 so that temperature electronic switch in open circuit or it is closed circuit, liquid crystal difference 0.2 DEG C can present it is transparent with
Opaque reversible change, the transformation temperature of the Push And Release of temperature electronic switch can control within the scope of 0.2 DEG C thus, it is intended to
The operating temperature and recovery temperature for solving existing temperature switch differ greatly, and operating temperature and the recovery temperature temperature difference are more than 10
DEG C, and the problem that mechanical action reliability is not high.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (8)
1. a kind of temperature electronic switch, which is characterized in that including luminescent device, light-sensitive device and liquid crystal block, the luminescent device
Optical channel is equipped between the light-sensitive device, the liquid crystal block is set in the optical channel；
The liquid crystal block is the liquid crystal block for changing its light transmittance according to temperature change；
The light-sensitive device is according to whether receive optical signal that the luminescent device issues and through the liquid crystal block, in fact
Existing ON/OFF control.
2. temperature electronic according to claim 1 switch, which is characterized in that the liquid crystal block be set to the luminescent device with
In direct projection optical path between the light-sensitive device, the liquid crystal root tuber stops institute according to itself light transmittance in the optical channel
The optical signal for stating luminescent device sending passes through, or the optical signal for allowing the luminescent device to issue in the optical channel is through institute
State light-sensitive device described in liquid crystal block directive.
3. temperature electronic switch according to claim 1, which is characterized in that the optical channel has reflective surface, the liquid
Crystal block is set on the reflective surface, and the liquid crystal root tuber stops the photophore according to itself light transmittance in the optical channel
The optical signal that part issues reflects on the reflective surface, or the optical signal for allowing the luminescent device to issue in the optical channel
Through liquid crystal block light-sensitive device described in reflective surface reflection directive.
4. temperature electronic switch according to claim 3, which is characterized in that the liquid crystal block is by being covered on the reflective surface
Formation of liquid crystals.
5. being switched according to temperature electronic described in claim 2 or 3, which is characterized in that when the temperature sensor of the liquid crystal block
When higher than its phase transition temperature, the liquid crystal block is in pellucidity, and the optical channel is connected；
When the temperature sensor of the liquid crystal block is below or equal to its phase transition temperature, the liquid crystal block is in opaque state,
It is closed the optical channel.
6. temperature electronic switch according to claim 5, which is characterized in that described to shine in optical channel conducting
The lightray propagation that device issues is to the light-sensitive device, when the light-sensitive device receives optical signal, the light-sensitive device
Itself is in closed circuit state in Low ESR, makes the temperature electronic switch in closed circuit；
In optical channel closure, the optical signal that the luminescent device issues does not travel to the light-sensitive device；
When the light-sensitive device does not receive optical signal, the light-sensitive device itself is in open-circuit condition in high impedance, makes institute
Temperature electronic switch is stated in open circuit.
7. temperature electronic switch according to claim 1, which is characterized in that the liquid crystal of the liquid crystal block is thermal induced phase transition liquid
It is brilliant.
8. temperature electronic switch according to claim 1, which is characterized in that when the luminescent device is tunable light source,
The luminescent device issues the optical signal of strength of stability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820718906.0U CN208314581U (en) | 2018-05-14 | 2018-05-14 | temperature electronic switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820718906.0U CN208314581U (en) | 2018-05-14 | 2018-05-14 | temperature electronic switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208314581U true CN208314581U (en) | 2019-01-01 |
Family
ID=64712574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820718906.0U Active CN208314581U (en) | 2018-05-14 | 2018-05-14 | temperature electronic switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208314581U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108681346A (en) * | 2018-05-14 | 2018-10-19 | 杨松 | Temperature electronic switchs and its method of switching |
-
2018
- 2018-05-14 CN CN201820718906.0U patent/CN208314581U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108681346A (en) * | 2018-05-14 | 2018-10-19 | 杨松 | Temperature electronic switchs and its method of switching |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208314581U (en) | temperature electronic switch | |
| EP2669558B1 (en) | Human body sensitive touch-controlled water outlet device and control method thereof | |
| JPH05205507A (en) | Device for controlling illumination level of room | |
| CN204520349U (en) | The water level monitoring system of water dispenser and water dispenser | |
| CN106764963A (en) | Intelligent-induction illuminator | |
| CN105449079A (en) | Color temperature adjustable white light LED lighting source | |
| CN106152655B (en) | Refrigerator | |
| EP2951491A1 (en) | Light guiding assembly with adjustable optical characteristics | |
| CN108681346A (en) | Temperature electronic switchs and its method of switching | |
| CN106488619A (en) | A kind of single live-line double-control switch mode of connection and circuit | |
| CN108791683A (en) | A kind of electric vehicle one-handed performance detecting system and method | |
| CN109521620A (en) | A kind of smart home glass | |
| CN206600690U (en) | intelligent lighting energy-saving LED lamp | |
| CN104442545A (en) | LED automotive lamp capable of preventing high beam | |
| CN110206457A (en) | A kind of intelligent dimming glass | |
| CN206061228U (en) | A kind of infrared bulb lamp | |
| CN105120554A (en) | Intelligent illumination system based on light-operated sensor | |
| CN102353230B (en) | Refrigeration equipment as well as door-opening alarm device and method used by same | |
| CN211352528U (en) | Hand-sweeping induction and human body induction double-induction intelligent induction switch | |
| EP2951492A1 (en) | Lighting device for a light guiding assembly | |
| CN207801895U (en) | A kind of hommization Intelligent colorful soft-touch control | |
| CN203352886U (en) | Diffuse reflection type infrared induction interaction type LED brightness adjustable induction device | |
| CN204948465U (en) | Illumination control apparatus | |
| CN203165426U (en) | Liquid crystal display screen of low-voltage switch cabinet digital instrument | |
| CN204989687U (en) | Liquid crystal atomizing glass's intelligent control circuit is sent to electricity |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |