CN207880792U - A kind of light-operated switch - Google Patents
A kind of light-operated switch Download PDFInfo
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- CN207880792U CN207880792U CN201820385036.XU CN201820385036U CN207880792U CN 207880792 U CN207880792 U CN 207880792U CN 201820385036 U CN201820385036 U CN 201820385036U CN 207880792 U CN207880792 U CN 207880792U
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- temperature
- heating resistor
- photo resistance
- tds
- power circuit
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Abstract
The utility model provides a kind of light-operated switch, including：Photo resistance, for perceiving ambient intensity；Heating resistor is electrically connected with photo resistance, and photo resistance remains at on-state with the first power circuit where heating resistor；Temperature detect switch (TDS) is electrically connected with load, and there is the temperature-sensitive copper cap for perceiving heating resistor temperature change, temperature detect switch (TDS) to generate the action that is turned on or off by perceiving the temperature change of heating resistor, to control the break-make of the second power circuit where load；Insulator spacer is arranged between heating resistor and temperature detect switch (TDS), in heating resistor scaling loss, to protect temperature detect switch (TDS)；By the way that insulator spacer is arranged, in heating resistor scaling loss, temperature detect switch (TDS) is protected, reliability and security performance is improved, reduces maintenance replacement cost.
Description
Technical field
The utility model is related to switching technique fields, and in particular to a kind of light-operated switch.
Background technology
Currently, street lamp is generally fitted provided with light-operated switch, light-operated switch can it is bright according to intensity of illumination automatic control lamp and
Lamp goes out, and the operation principle of light-operated switch is detected extraneous light generally by photo resistance, the resistance value of photo resistance with
Changing with the variation of intensity of illumination, control circuit sets the threshold value of an illuminance according to the change in resistance of photo resistance, when
When intensity of illumination is less than threshold value, control circuit control street lamp is lighted automatically, when intensity of illumination is higher than threshold value, control circuit control
Street lamp automatic distinguishing not only saves manpower using light-operated switch, but also can save a large amount of electric energy, therefore is widely transported
With.
Existing a kind of light-operated switch, as shown in Figure 1, light-operated switch is mainly by photo resistance 02, heating resistor 03, temperature control
Switch 04, load 05 and power supply 06 form, and photo resistance 02 and heating resistor 03 are connected on the first power circuit, temperature detect switch (TDS) 04
It is connected on the second power circuit with load 05, when ambient Strength Changes, the resistance value of photo resistance 02 can change, the
The size of current meeting respective change of one power circuit, according to resistance heating formula：Q=I2RT, the own temperature of heating resistor 03
Also can according to curent change respective change, the temperature-sensitive copper cap of temperature detect switch (TDS) 04 by incuding the temperature change of heating resistor 03,
When reaching certain threshold temperature, itself will produce on-off action, to load the logical of the second power circuit where 05 to control
It is disconnected.Above-mentioned light-operated switch at work, if the case where breakdown scaling loss occurs in heating resistor, can lead to other electronic components
The damage of (such as temperature detect switch (TDS)), increases maintenance replacement cost.
Utility model content
Therefore, the technical problem to be solved by the present invention is to overcome light-operated switch heating resistor appearance in the prior art
The case where breakdown scaling loss, can lead to the damage of other electronic components (such as temperature detect switch (TDS)), increase maintenance replacement cost
Technological deficiency, to provide a kind of light-operated switch that maintenance replacement cost is low.
For this purpose, the utility model provides a kind of light-operated switch, including：
Photo resistance, for perceiving ambient intensity；
Heating resistor is electrically connected with the photo resistance, and the photo resistance and first where the heating resistor are logical
Electrical circuit remains at on-state；
Temperature detect switch (TDS) is electrically connected with load, has the temperature-sensitive copper cap for perceiving heating resistor temperature change, the temperature control
Switch generates the action that is turned on or off by perceiving the temperature change of heating resistor, to control second where the load
The break-make of power circuit；
Insulator spacer is arranged between the heating resistor and the temperature detect switch (TDS), in the heating resistor scaling loss
When, protect the temperature detect switch (TDS)；
When the ambient weakened, the photo resistance becomes larger, and leads to where the photo resistance
The electric current of one power circuit becomes smaller, and the heating resistor temperature reduces, and when reaching first threshold temperature, the temperature detect switch (TDS) is led
It is logical, it is powered to control the second power circuit where the load；
When the ambient intensity becomes strong, the photo resistance becomes smaller, and leads to the where the photo resistance
The electric current of one power circuit becomes larger, and the heating resistor temperature increases, and when reaching second threshold temperature, the temperature detect switch (TDS) is disconnected
It opens, to control the second power circuit power-off where the load.
As a preferred embodiment, the insulator spacer is the insulating sleeve being set on the heating resistor, described
The outer wall of insulating sleeve is bonded abutting with the temperature-sensitive copper cap.
As a preferred embodiment, the light-operated switch further includes the varistor in parallel with the photo resistance.
A kind of light-operated switch provided by the utility model, has the following advantages：
1. the light-operated switch of the utility model, including photo resistance, heating resistor, temperature detect switch (TDS), insulator spacer, pass through
Insulator spacer is set, in heating resistor scaling loss, protects temperature detect switch (TDS), improves reliability and security performance, reduce dimension
Repair replacement cost.
2. the light-operated switch of the utility model, insulator spacer is the insulating sleeve being set on heating resistor, insulation sleeve
The outer wall of pipe is bonded abutting with temperature-sensitive copper cap, when installation, insulating sleeve is penetrated from the side pin of heating resistor, is installed
It is efficient and convenient, and insulating sleeve is not easy to fall, and is more firmly mounted, in addition, insulating sleeve increases heating resistor and temperature-sensitive copper
Contact area between cap, increases heat-conducting effect.
3. the light-operated switch of the utility model, light-operated switch further includes the varistor in parallel with photo resistance, to play
The effect of surge protection.
Description of the drawings
In order to illustrate more clearly of the technical solution in the prior art or specific embodiment of the present invention, below to existing
There is the attached drawing used in technology or specific implementation mode description to be briefly described, it should be apparent that, for the common skill in this field
For art personnel, without creative efforts, other drawings may also be obtained based on these drawings.
Fig. 1 is the circuit diagram of light-operated switch in the prior art.
Fig. 2 is the structural schematic diagram of light-operated switch in embodiment.
Fig. 3 is another structural schematic diagram of light-operated switch.
Reference numeral：02, photo resistance；03, heating resistor；04, temperature detect switch (TDS)；05, it loads；06, power supply；
1, pedestal；2, photo resistance；3, heating resistor；4, temperature detect switch (TDS)；41, temperature-sensitive copper cap；5, insulator spacer；6, it presses
Quick resistance.
Specific implementation mode
The technical solution of the utility model is described with reference to the accompanying drawings of the specification, it is clear that following embodiments are not
It is the embodiment of the utility model whole.Based on the utility model described embodiment, those of ordinary skill in the art are not having
There is the every other embodiment obtained under the premise of making other creative works, belongs to the scope of protection of the utility model.
It should be noted that term " first ", " second " are used for description purposes only in the description of the present invention, and
It should not be understood as indicating or implying relative importance.In addition, involved in the utility model different embodiments disclosed below
And technical characteristic can be combined with each other as long as they do not conflict with each other.
Embodiment
The present embodiment provides a kind of light-operated switches, as shown in Fig. 2, including：Photo resistance 2 is arranged on pedestal 1, is used for
Perceive ambient intensity；Heating resistor 3 is arranged on pedestal 1, is electrically connected with the photo resistance 2, the photo resistance 2
On-state is remained at the first power circuit where the heating resistor 3；Temperature detect switch (TDS) 4 is (it should be noted that temperature
Control switch is existing mature technology, therefore is not described in detail to its internal structure and operation principle), it is arranged on pedestal 1, and it is negative
Electrical connection is carried, there is the temperature-sensitive copper cap 41 for perceiving 3 temperature change of heating resistor, the temperature detect switch (TDS) 4 to be generated heat by perceiving
The temperature change of resistance 3 generates the action that is turned on or off, to controlling the break-make of the second power circuit where the load；
Insulator spacer 5 is arranged between the heating resistor 3 and the temperature detect switch (TDS) 4, in 3 scaling loss of heating resistor, to protect
Protect the temperature detect switch (TDS) 4；When the ambient weakened, 2 resistance value of the photo resistance becomes larger, and leads to the photo resistance
The electric current of the first power circuit where 2 becomes smaller, and 3 temperature of the heating resistor reduces, described when reaching first threshold temperature
Temperature detect switch (TDS) 4 is connected, and is powered to control the second power circuit where the load；When the ambient intensity becomes strong,
2 resistance value of the photo resistance becomes smaller, and causes the electric current of the first power circuit where the photo resistance 2 to become larger, the fever
3 temperature of resistance increases, and when reaching second threshold temperature, the temperature detect switch (TDS) 4 disconnects, to control the where the load
Two power circuits power off.The light-operated switch of the present embodiment, by the way that insulator spacer 5 is arranged, in 3 scaling loss of heating resistor, protection
Temperature detect switch (TDS) 4, improves reliability and security performance, reduces maintenance replacement cost.
In the present embodiment, as shown in figure 3, the insulator spacer 5 is the insulation sleeve being set on the heating resistor 3
Pipe, the outer wall of the insulating sleeve are bonded abutting with the temperature-sensitive copper cap 41.When installation, by insulating sleeve from heating resistor
3 side pin penetrates, and is quickly and expediently installed, and insulating sleeve is not easy to fall, and is more firmly mounted, in addition, insulating sleeve increases
Add the contact area between heating resistor 3 and temperature-sensitive copper cap 41, increases heat-conducting effect.
It should be noted that in the present embodiment, insulator spacer, which can also be potsherd, insulation board, plastic plate etc., to be had
Heat conduction and the component for being dielectrically separated from function.
The light-operated switch of the present embodiment, the light-operated switch further include the varistor 6 in parallel with the photo resistance 2.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
Among changing still in the scope of protection of the utility model.
Claims (3)
1. a kind of light-operated switch, it is characterised in that：Including：
Photo resistance (2), for perceiving ambient intensity；
Heating resistor (3) is electrically connected with the photo resistance (2), the photo resistance (2) and the heating resistor (3) place
The first power circuit remain at on-state；
Temperature detect switch (TDS) (4) is electrically connected with load, has the temperature-sensitive copper cap (41) for perceiving heating resistor (3) temperature change, institute
Temperature detect switch (TDS) (4) is stated by perceiving the temperature change of heating resistor (3) to generate the action that is turned on or off, to control described bear
The break-make of the second power circuit where carrying；
Insulator spacer (5) is arranged between the heating resistor (3) and the temperature detect switch (TDS) (4), in the heating resistor
(3) when scaling loss, the temperature detect switch (TDS) (4) is protected；
When the ambient weakened, photo resistance (2) resistance value becomes larger, where leading to the photo resistance (2)
The electric current of first power circuit becomes smaller, and heating resistor (3) temperature reduces, when reaching first threshold temperature, the temperature control
(4) conducting is switched, is powered to control the second power circuit where the load；
When the ambient intensity becomes strong, photo resistance (2) resistance value becomes smaller, where leading to the photo resistance (2)
The electric current of first power circuit becomes larger, and heating resistor (3) temperature increases, when reaching second threshold temperature, the temperature control
It switchs (4) to disconnect, to control the second power circuit power-off where the load.
2. light-operated switch according to claim 1, it is characterised in that：The insulator spacer (5) is to be set in the hair
Insulating sleeve on thermal resistance (3), the outer wall of the insulating sleeve are bonded abutting with the temperature-sensitive copper cap (41).
3. light-operated switch according to claim 1, it is characterised in that：The light-operated switch further includes and the photo resistance
(2) varistor (6) in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820385036.XU CN207880792U (en) | 2018-03-21 | 2018-03-21 | A kind of light-operated switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820385036.XU CN207880792U (en) | 2018-03-21 | 2018-03-21 | A kind of light-operated switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207880792U true CN207880792U (en) | 2018-09-18 |
Family
ID=63497034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820385036.XU Active CN207880792U (en) | 2018-03-21 | 2018-03-21 | A kind of light-operated switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207880792U (en) |
-
2018
- 2018-03-21 CN CN201820385036.XU patent/CN207880792U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 325604 No. 57 Liule Road, Liushi Town, Yueqing City, Wenzhou City, Zhejiang Province Patentee after: Zhejiang Qicheng Electrical Appliances Co., Ltd. Address before: 325604 No. 57 Liule Road, Liushi Town, Yueqing City, Wenzhou City, Zhejiang Province Patentee before: Wenzhou Qicheng Electrical Appliances Co., Ltd. |