CN207368432U - A kind of low-voltage cabinet illumination air draft circuit - Google Patents
A kind of low-voltage cabinet illumination air draft circuit Download PDFInfo
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- CN207368432U CN207368432U CN201721264794.8U CN201721264794U CN207368432U CN 207368432 U CN207368432 U CN 207368432U CN 201721264794 U CN201721264794 U CN 201721264794U CN 207368432 U CN207368432 U CN 207368432U
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- voltage cabinet
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- enter line
- power input
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Abstract
The utility model discloses a kind of low-voltage cabinet illumination air draft circuit, it is characterised in that including the headlamp, ventilating fan and temperature controller being connected in parallel, the headlamp is connected by travel switch with the power input of low-voltage cabinet enter line side；The ventilating fan passes sequentially through the contact circuit of electrothermal relay, the contact circuit of A.C. contactor is connected with the power input of low-voltage cabinet enter line side；One end of the temperature controller is connected by knob with the L poles of low-voltage cabinet enter line side power input, and the other end of the temperature controller is connected by A.C. contactor control loop, electrothermal relay control loop with the N poles of low-voltage cabinet enter line side power input.In actual work, as unlatching, the closing of headlamp are realized in the unlatching of low-voltage cabinet cabinet door, closing.When low-voltage cabinet cabinet door is closed, headlamp LED is also accordingly turned off；When cabinet body temperature is excessive, worked by temperature controller automatic control exhaust fan, reduce energy consumption and avoid producing extra heat in cabinet.
Description
Technical field
It the utility model is related to electrical cabinet technical field, more particularly to a kind of illumination air draft control circuit of low-voltage cabinet.
Background technology
The many switches of installation, instrument component inside present low-voltage cabinet, internal component is intensive, and temperature is higher.For just
In the heat dissipation of low-voltage cabinet, some venetian blind type heat emission holes are typically provided with low-voltage cabinet shell.When various electrical equipments and always
When in running order, the heat dissipation of traditional venetian blind type is difficult to meet cooling requirements, causes control panel heat to arrange in time
Put, easily burn control panel.And a total leakage switch is set in low-voltage cabinet, and illumination and power line are not separated by, and one
The total electric leakage switch tripping of denier, construction site will be as dark as a stack of black cats, and the power for illumination of rushing to repair, withdraw, evacuating personnel does not all have, to applying
Work enterprise brings extra trouble, influences being normally carried out for construction.
The content of the invention
For problems of the prior art, the purpose of this utility model is to provide a kind of circuit structure is simple, peace
The low-voltage cabinet illumination air draft circuit of good perfection.
To achieve the above objectives, the utility model adopts the following technical solution.
A kind of low-voltage cabinet illumination air draft circuit, it is characterised in that including the headlamp, ventilating fan and temperature control being connected in parallel
Device, the headlamp are connected by travel switch with the power input of low-voltage cabinet enter line side；The ventilating fan passes sequentially through heat
The contact circuit of relay, the contact circuit of A.C. contactor are connected with the power input of low-voltage cabinet enter line side；The temperature control
One end of device is connected by knob with the L poles of low-voltage cabinet enter line side power input, and the other end of the temperature controller passes through exchange
Contactor control loop, electrothermal relay control loop are connected with the N poles of low-voltage cabinet enter line side power input.
As a further illustration of the above scheme, the power input in low-voltage cabinet enter line side is equipped with miniature circuit breaker.
As a further illustration of the above scheme, the model WTYK-83 of the temperature controller.
As a further illustration of the above scheme, it is parallel between the L poles of low-voltage cabinet enter line side power input and N poles
Red, green two indicator lights, corresponding each indicator light are equipped with the relay for controlling its light on and off.
As a further illustration of the above scheme, the travel switch is installed in the cabinet door of low-voltage cabinet.
The beneficial effects of the utility model are：
First, in actual work, as unlatching, the closing of headlamp L is realized in the unlatching of cabinet door, closing.In low-voltage cabinet cabinet door
During closing, headlamp LED is also accordingly turned off；When cabinet body temperature is excessive, worked, dropped by temperature controller automatic control exhaust fan
Low energy consumption simultaneously avoids producing extra heat in cabinet.
2nd, miniature circuit breaker QF301 is equipped with by the power input in low-voltage cabinet enter line side.When illumination air draft circuit hair
During raw failure, the power supply in illumination air draft circuit is only disconnected, other components will not be impacted.
Brief description of the drawings
Fig. 1 show air draft lighting loop structure diagram in case provided by the utility model.
Fig. 2 show air draft lighting loop partial structural diagram in case provided by the utility model.
Embodiment
With reference to the attached drawing of specification, by being further described to specific embodiment of the present utility model, make
The technical solution of the utility model and its advantage are clearer, clear and definite.It is to show to describe embodiment below with reference to attached drawing
Example property, it is intended to explain the utility model, and it is not intended that limitation to the utility model.
As shown in Figure 1 and Figure 2, a kind of low-voltage cabinet illumination air draft circuit, it is characterised in that including the illumination being connected in parallel
Lamp L, ventilating fan M and temperature controller KT, the headlamp L are connected by travel switch SQ and the power input of low-voltage cabinet enter line side
Connect；The ventilating fan M passes sequentially through the contact circuit of electrothermal relay FR, the contact circuit of A.C. contactor KM and low-voltage cabinet inlet wire
The power input connection of side；One end of the temperature controller KT is connected by the L poles of knob K and low-voltage cabinet enter line side power input
Connect, the other end of the temperature controller KT by A.C. contactor KM control loops, electrothermal relay FR control loops and low-voltage cabinet into
The N poles connection of line side power input.
Wherein, the travel switch SQ is installed in the cabinet door of low-voltage cabinet, with the unlatching of cabinet door, is closed and is realized headlamp
The unlatching of L, close.When low-voltage cabinet cabinet door is closed, headlamp LED is also accordingly turned off, and is reduced energy consumption and is avoided producing in cabinet
Raw extra heat.The model WTYK-83 of the temperature controller KT.
Preferably, two red HR, green HG instructions are parallel between the L poles of low-voltage cabinet enter line side power input and N poles
Lamp, corresponding each indicator light HR/HG are respectively equipped with the relay for controlling its light on and off.
Further, it is equipped with miniature circuit breaker QF301 in the power input of low-voltage cabinet enter line side.When illumination air draft circuit
When breaking down, the power supply in illumination air draft circuit is only disconnected, other components will not be impacted.
From the foregoing description of structures and principles it should be understood by those skilled in the art that, the utility model
Above-mentioned embodiment is not limited to, it is equal using the improvement and replacement of techniques well known on the basis of the utility model
Falling should be limited in the scope of protection of the utility model, the scope of protection of the utility model by each claim and its equivalent
It.
Claims (5)
1. a kind of low-voltage cabinet illumination air draft circuit, it is characterised in that including the headlamp, ventilating fan and temperature control being connected in parallel
Device, the headlamp are connected by travel switch with the power input of low-voltage cabinet enter line side；The ventilating fan passes sequentially through heat
The contact circuit of relay, the contact circuit of A.C. contactor are connected with the power input of low-voltage cabinet enter line side；The temperature control
One end of device is connected by knob with the L poles of low-voltage cabinet enter line side power input, and the other end of the temperature controller passes through exchange
Contactor control loop, electrothermal relay control loop are connected with the N poles of low-voltage cabinet enter line side power input.
2. a kind of low-voltage cabinet illumination air draft circuit according to claim 1, it is characterised in that in the electricity of low-voltage cabinet enter line side
Source input terminal is equipped with miniature circuit breaker.
A kind of 3. low-voltage cabinet illumination air draft circuit according to claim 1, it is characterised in that the model of the temperature controller
WTYK-83。
4. a kind of low-voltage cabinet illumination air draft circuit according to claim 1, it is characterised in that in low-voltage cabinet enter line side power supply
Red, green two indicator lights are parallel between the L poles and N poles of input terminal, corresponding each indicator light is equipped with the relay for controlling its light on and off
Device.
5. a kind of low-voltage cabinet illumination air draft circuit according to claim 1, it is characterised in that the travel switch is installed on
In the cabinet door of low-voltage cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721264794.8U CN207368432U (en) | 2017-09-29 | 2017-09-29 | A kind of low-voltage cabinet illumination air draft circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721264794.8U CN207368432U (en) | 2017-09-29 | 2017-09-29 | A kind of low-voltage cabinet illumination air draft circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207368432U true CN207368432U (en) | 2018-05-15 |
Family
ID=62347015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721264794.8U Active CN207368432U (en) | 2017-09-29 | 2017-09-29 | A kind of low-voltage cabinet illumination air draft circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207368432U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110913637A (en) * | 2019-11-13 | 2020-03-24 | 许昌许继风电科技有限公司 | Fan communication cabinet |
-
2017
- 2017-09-29 CN CN201721264794.8U patent/CN207368432U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110913637A (en) * | 2019-11-13 | 2020-03-24 | 许昌许继风电科技有限公司 | Fan communication cabinet |
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