CN215647913U - Control device of cabinet - Google Patents
Control device of cabinet Download PDFInfo
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- CN215647913U CN215647913U CN202121194978.8U CN202121194978U CN215647913U CN 215647913 U CN215647913 U CN 215647913U CN 202121194978 U CN202121194978 U CN 202121194978U CN 215647913 U CN215647913 U CN 215647913U
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- heating device
- power supply
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- 238000010438 heat treatment Methods 0.000 claims abstract description 90
- 238000004891 communication Methods 0.000 claims abstract description 5
- 238000009833 condensation Methods 0.000 abstract description 28
- 230000005494 condensation Effects 0.000 abstract description 27
- 230000000694 effects Effects 0.000 abstract description 16
- 229920000742 Cotton Polymers 0.000 abstract description 11
- 238000004321 preservation Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 7
- 238000005485 electric heating Methods 0.000 description 7
- 238000007791 dehumidification Methods 0.000 description 6
- 230000002265 prevention Effects 0.000 description 6
- 239000012528 membrane Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a control device of a cabinet. The system comprises: the temperature and humidity sensor is arranged in a preset distance range outside the cabinet; the temperature sensor is arranged on a target panel of the cabinet; the controller is respectively connected with the temperature and humidity sensor and the temperature sensor and used for determining the dew point temperature outside the cabinet according to the temperature data and the humidity data acquired by the temperature and humidity sensor, comparing the dew point temperature with the temperature data acquired by the temperature sensor and outputting a control signal according to the comparison result; the heating device is in communication connection with the controller and is used for executing or terminating the heating action on the target panel according to the control signal; and a power supply connected to the controller and the heating device, respectively. Through this application, prevented the cabinet surface condensation through the cotton mode of installation heat preservation in the cabinet among the correlation technique, prevented the poor problem of condensation effect.
Description
Technical Field
The application relates to the technical field of cabinet control, in particular to a control device of a cabinet.
Background
In engineering application, when facing high temperature and high humidity operating mode, the rack surface can produce a large amount of condensation water, as shown in fig. 1, rack surface condensation makes the electrical safety of unit have great hidden danger, not only influences the normal work of rack, threatens operator's personal safety moreover.
In order to prevent the surface of the cabinet from being exposed, heat insulation cotton is adhered inside the cabinet to block the temperature difference between the inside and the outside of the cabinet in the related art. However, in the way of preventing condensation through the physical heat insulation means, on one hand, the condensation prevention effect is poor, and on the other hand, if the condensation prevention requirement under the severe condition is to be met, the thickness of the heat preservation cotton must be increased, so that the difficulty of installing the heat preservation cotton in the cabinet is increased.
To prevent the cabinet surface condensation through the cotton mode of installation heat preservation in the cabinet among the correlation technique, prevent the poor problem of condensation effect, effective solution has not been proposed yet at present.
SUMMERY OF THE UTILITY MODEL
The utility model provides a control device of a cabinet, which aims to solve the problems that in the related art, the condensation on the surface of the cabinet is prevented in a mode of installing heat-preservation cotton in the cabinet, and the condensation prevention effect is poor.
According to one aspect of the present invention, a control apparatus of a cabinet is provided. The device includes:
the temperature and humidity sensor is arranged in a preset distance range outside the cabinet; the temperature sensor is arranged on a target panel of the cabinet; the controller is respectively connected with the temperature and humidity sensor and the temperature sensor and used for determining the dew point temperature outside the cabinet according to the temperature data and the humidity data acquired by the temperature and humidity sensor, comparing the dew point temperature with the temperature data acquired by the temperature sensor and outputting a control signal according to the comparison result; the heating device is in communication connection with the controller and is used for executing or terminating the heating action on the target panel according to the control signal; and a power supply connected to the controller and the heating device, respectively.
Optionally, the apparatus further comprises: and the switching device is arranged between the power supply and the heating device, consists of a coil and a contact, and is used for controlling the contact to be closed and opened according to the control signal so as to switch on or off a connecting loop between the heating device and the power supply.
Optionally, the apparatus further comprises: the input end of the switching power supply is connected with the power supply, and the output end of the switching power supply is respectively connected with the controller and the switching device.
Optionally, the heating device is an electrothermal film disposed on an inner surface of the target panel.
Optionally, the temperature and humidity sensor is disposed on an outer surface of the target panel, and the temperature sensor is disposed on an inner surface of the target panel.
Optionally, the apparatus further comprises a first circuit breaker disposed between the heater and the power source; and the second circuit breaker is arranged between the switching power supply and the power supply.
According to another aspect of the present invention, another control apparatus for a cabinet is provided. The device includes:
the heating device is used for heating a target panel of the cabinet; the power supply is connected with the heating device and used for supplying power to the heating device; and the temperature limiter is arranged on the target panel, is connected in series between the heating device and the power supply and is used for executing action or resetting based on the temperature of the target panel so as to disconnect or connect a connecting loop between the heating device and the power supply.
Optionally, the heating device is an electrothermal film disposed on an inner surface of the target panel.
Optionally, the temperature limiter is disposed on an inner surface of the target panel, or on an outer surface of the electrothermal film.
Optionally, the apparatus further comprises a circuit breaker disposed between the temperature limiter and the power source.
According to the utility model, the temperature and humidity sensor is arranged in a preset distance range outside the cabinet; the temperature sensor is arranged on a target panel of the cabinet; the controller is respectively connected with the temperature and humidity sensor and the temperature sensor and used for determining the dew point temperature outside the cabinet according to the temperature data and the humidity data acquired by the temperature and humidity sensor, comparing the dew point temperature with the temperature data acquired by the temperature sensor and outputting a control signal according to the comparison result; the heating device is in communication connection with the controller and is used for executing or terminating the heating action on the target panel according to the control signal; and the power supply is respectively connected with the controller and the heating device, so that the problems that condensation on the surface of the cabinet is prevented and the condensation prevention effect is poor in the related art by installing heat preservation cotton in the cabinet are solved. The cabinet is heated through the heating device, and the effect of effectively preventing the surface of the cabinet from being condensed is achieved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:
FIG. 1 is a schematic illustration of cabinet surface condensation according to the related art;
fig. 2 is a schematic diagram of a control device of a cabinet provided according to an embodiment of the present application;
fig. 3 is a schematic diagram of an arrangement of a heating device in a control apparatus of a cabinet according to an embodiment of the present application;
fig. 4 is a schematic diagram of an arrangement of a temperature and humidity sensor and a temperature sensor in a control device of a cabinet provided in an embodiment of the present application;
fig. 5 is a schematic diagram of an alternative cabinet control apparatus provided in accordance with an embodiment of the present application;
fig. 6 is a flowchart illustrating an operation of a control apparatus of a cabinet according to an embodiment of the present disclosure;
fig. 7 is a schematic diagram of another control device of a cabinet provided according to an embodiment of the present application;
fig. 8 is a schematic diagram of an alternative cabinet control apparatus provided in accordance with an embodiment of the present application;
fig. 9 is a flowchart of an operation of another control apparatus of a cabinet according to an embodiment of the present application.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances in order to facilitate the description of the embodiments of the utility model herein.
According to an embodiment of the present invention, there is provided a control apparatus of a cabinet.
Fig. 1 is a flowchart of a control apparatus of a cabinet according to an embodiment of the present invention. As shown in fig. 1, the apparatus includes:
and the temperature and humidity sensor 21 is arranged in a preset distance range outside the cabinet.
It should be noted that the temperature and humidity sensor 21 needs to accurately acquire the temperature and humidity of the environment around the cabinet to determine the condensation point on the surface of the cabinet, optionally, the temperature and humidity sensor 21 may be disposed on the casing of the cabinet, or may be disposed at another position outside the cabinet within a range of 30cm to 50cm from the cabinet, and the specific position of the temperature and humidity sensor 21 is not limited in this embodiment.
And the temperature sensor 22 is arranged on the target panel of the cabinet.
Specifically, the target panel of the cabinet is a panel in which the condensation phenomenon is severe, for example, the target panel may be one or more of a door panel, a side panel, a back panel, a top cover, and a bottom panel of the cabinet, and the temperature sensor 22 is disposed on the target panel.
And the controller 23 is connected with the temperature and humidity sensor 21 and the temperature sensor 22 respectively, and is used for determining the dew point temperature outside the cabinet according to the temperature data and the humidity data acquired by the temperature and humidity sensor 21, comparing the dew point temperature with the temperature data acquired by the temperature sensor 22, and outputting a control signal according to the comparison result.
Specifically, controller 23 can be little the control unit (MCU), controller 23 can supply power to temperature and humidity sensor 21 and temperature sensor 22, and acquire the temperature data and the humidity data that temperature and humidity sensor 21 gathered, calculate the outside dew point temperature of rack, and compare dew point temperature and the temperature data that temperature sensor 22 gathered, when the result of comparison shows that the temperature data that temperature sensor 22 gathered are less than dew point temperature, output first control signal, when the result of comparison shows that the temperature data that temperature sensor 22 gathered are more than or equal to dew point temperature, output second control signal.
In an alternative embodiment, the dew point temperature outside the cabinet may be calculated by the following equation:
wherein,
Tdthe dew point temperature is given In degrees celsius, T is first temperature data given In degrees celsius, RH is first humidity data given In degrees celsius, the first humidity data is relative humidity given In percentage as relative humidity, In is a natural logarithm, a and b are constants, respectively, a is 17.27 degrees celsius, and b is 237.7 degrees celsius.
And a heating device 24, which is connected with the controller 23 in a communication way and is used for executing or terminating the heating action of the target panel according to the control signal.
Specifically, the heating device 24 performs a heating action on the target panel to raise the temperature of the target panel and avoid surface condensation of the target panel, upon receiving the first control signal from the controller 23, and terminates the heating action on the target panel, upon receiving the second control signal.
The power supply 25 is connected to the controller 23 and the heating device 24, respectively.
Specifically, the power supply 25 supplies power to the controller 23 and the heating device 24, respectively, to ensure the proper operation of the controller 23 and the heating device 24.
The control device of the cabinet provided by the embodiment of the application is arranged in a preset distance range outside the cabinet through the temperature and humidity sensor 21; a temperature sensor 22 disposed on a target panel of the cabinet; the controller 23 is connected with the temperature and humidity sensor 21 and the temperature sensor 22 respectively, and is used for determining the dew point temperature outside the cabinet according to the temperature data and the humidity data acquired by the temperature and humidity sensor 21, comparing the dew point temperature with the temperature data acquired by the temperature sensor 22, and outputting a control signal according to the comparison result; a heating device 24, communicatively connected to the controller 23, for performing or terminating a heating action on the target panel according to the control signal; and the power supply 25 is respectively connected with the controller 23 and the heating device 24, so that the problems that in the related art, the condensation on the surface of the cabinet is prevented in a mode of installing heat preservation cotton in the cabinet, and the condensation prevention effect is poor are solved. The cabinet is heated through the heating device, and the effect of effectively preventing the surface of the cabinet from being condensed is achieved.
The type of the heating device 24 may be various, and optionally, in the control apparatus of the cabinet provided in the embodiment of the present application, the heating device 24 is an electrothermal film, and the electrothermal film is disposed on an inner surface of the target panel.
In an optional implementation manner, as shown in fig. 3, the target panel may be a door panel of the cabinet, and at least one electrothermal film may be disposed on an inner side of the door panel, for example, 4 heating films may be uniformly disposed on an inner side of the door panel, so as to uniformly heat the door panel, thereby preventing condensation from being generated on the door panel when the temperature of the door panel is lower than that of the cabinet.
Through this embodiment, adopt heating device 24 to heat the target panel, compare in the cotton thermal-insulated dehumidification mode of physics of pasting the heat preservation in traditional rack inside, it is more convenient in the device installation, and occupation space is littleer, and the dehumidification mode is initiative dehumidification, automatic control, applicable in more abominable operating mode, and the dehumidification effect is better.
In order to ensure the anti-condensation effect, optionally, in the control device of the cabinet provided in the embodiment of the present application, the temperature and humidity sensor 21 is disposed on an outer surface of the target panel, and the temperature sensor 22 is disposed on an inner surface of the target panel.
Specifically, as shown in fig. 4, the temperature and humidity sensor 21 and the temperature sensor 22 are respectively disposed on the inner surface and the outer surface of the target panel, so that the accuracy of the calculated external dew point temperature of the target panel and the accuracy of the collected temperature of the target panel can be ensured, and the effect of preventing external condensation of the target panel can be improved.
In order to improve the convenience of the heating device 24 performing or terminating the heating action on the target panel according to the control signal, optionally, in the control apparatus of the cabinet provided in the embodiment of the present application, the system further includes: and a switching device disposed between the power supply 25 and the heating device 24, the switching device being composed of a coil and a contact, the switching device being configured to control the closing and opening of the contact according to a control signal to turn on or off a connection loop between the heating device 24 and the power supply 25.
Specifically, the switching device may be a relay or a contactor, and in the case that the power of the heating device 24 is small, the operating state of the heating device 24 may be controlled using an intermediate relay, and in the case that the power of the heating device 24 is large, the operating state of the heating device 24 may be controlled using a contactor.
In order to improve the safety of power supply, optionally, in the control device of the cabinet provided in this embodiment of the present application, the system further includes: and the input end of the switching power supply is connected with the power supply 25, and the output end of the switching power supply is respectively connected with the controller 23 and the switching device.
In order to further improve the safety of power supply, optionally, in the control device of a cabinet provided in the embodiment of the present application, the device further includes a first circuit breaker disposed between the heater and the power supply; and the second circuit breaker is arranged between the switching power supply and the power supply.
In an alternative embodiment, as shown in fig. 5, in the case that the power supply 25 is a power supply grid and the controller 23 is an MCU, a 24V switching power supply is connected to the power supply grid through a circuit breaker KM1, the switching power supply is used for supplying power to the MCU and the switching device, and meanwhile, the heating device 24 is connected to the power supply grid through a circuit breaker KM2, and the MCU controls the DO port to output a normally open and normally closed signal, so as to control the switching device to open and close, thereby indirectly controlling the working state of the heating device 24.
Fig. 6 is a flowchart of the operation of the control device of the cabinet according to the embodiment of the present application. As shown in fig. 6, the method comprises the following steps:
the data of acquireing the temperature and humidity sensor collection that sets up outside the rack, and calculate and obtain dew point temperature A, read the door plant temperature B that the temperature sensor who sets up on the rack door plant gathered simultaneously, compare dew point temperature A and door plant temperature B, judge whether dew point temperature A is greater than door plant temperature B, be greater than door plant temperature B's condition at dew point temperature A, open the electric heat membrane that sets up at the door plant internal surface, heat the door plant, and carry out the in-process that heats the door plant, judge whether door plant temperature B is greater than dew point temperature A, be greater than dew point temperature A at door plant temperature B under the condition of dew point temperature A, close the electric heat membrane, get back to initial detection simultaneously.
Through this embodiment, use the electric heat membrane to carry out self-heating to the door plant of rack for rack surface temperature is higher than external environment dew point temperature, thereby reaches the effect that prevents the condensation of rack surface, compares in the inside thermal-insulated dehumidification method of the cotton physics of pasting heat preservation of traditional rack, and is more convenient in the installation, and occupation space is littleer, is applicable to more abominable operating mode, and the dehumidification effect is better.
The embodiment of the utility model also provides a control device of the cabinet. The following describes a control device of a cabinet according to an embodiment of the present invention.
Fig. 7 is a schematic diagram of a control device of a cabinet according to an embodiment of the utility model. As shown in fig. 7, the system includes:
and a heating device 71 for heating the target panel of the cabinet.
Specifically, the target panel is heated by the heating device 71 to raise the temperature of the target panel, so that the temperature of the target panel is higher than the dew point temperature outside the cabinet, and the target panel is prevented from generating a condensation phenomenon.
The type of the heating device 71 may be various, and optionally, in the control apparatus of the cabinet provided in the embodiment of the present application, the heating device 71 is an electric heating film, and the electric heating film is disposed on an inner surface of the target panel.
Specifically, the electrothermal film arranged on the inner surface of the target panel may be one or multiple ones, and may be uniformly arranged on the inner surface of the target panel under multiple conditions.
And a power supply 72 connected to the heating device 71 for supplying power to the heating device 71.
Specifically, as shown in fig. 8, the power source 72 may be a power supply grid, and a circuit breaker KM2 may be provided between the power supply grid and the heating device 71 to ensure safety of power supply. .
And a temperature limiter 73 disposed on the target panel and connected in series between the heating device 71 and the power supply 72 for performing an action or reset based on the temperature of the target panel to open or close a connection loop between the heating device 71 and the power supply 72.
Specifically, after the system is powered on, the power supply 72 supplies power to the heating device 71, the heating device 71 heats the target panel, and when the temperature of the target panel reaches the preset temperature of the temperature limiter 71, the limiter 73 operates to disconnect the connection loop between the heating device 71 and the power supply 72, so that the heating of the target panel can be stopped. When the temperature of the target panel is reduced to below the preset temperature, the temperature limiter 73 automatically resets, and the connection loop between the heating device 71 and the power supply 72 is switched on to recover the heating of the target panel.
The position of the temperature limiter 73 may be different according to the type of the heating device 71, and optionally, in the control device of the cabinet provided in the embodiment of the present application, the temperature limiter 73 is disposed on the inner surface of the target panel or on the outer surface of the electrothermal film.
Specifically, when the heating device 71 heats the target panel in a non-contact manner, in order to improve the effect of preventing condensation, a temperature limiter 73 may be provided on an inner surface of the target panel, wherein a terminal of the temperature limiter 73 is connected to the power supply 72 to accurately sense the temperature of the target panel.
When the heating device 71 heats the target panel in a contact manner, for example, when the heating device 71 is an electrothermal film, the temperature limiter 73 can be arranged on the outer surface of the electrothermal film, so that the temperature of the target panel heated by the heating device 71 can be accurately sensed.
The control device of the cabinet provided by the embodiment of the application is used for heating the target panel of the cabinet through the heating device 71; a power supply 72 connected to the heating device 71 for supplying power to the heating device 71; and the temperature limiter 73 is arranged on the target panel, is connected in series between the heating device 71 and the power supply 72, and is used for executing action or resetting based on the temperature of the target panel so as to disconnect or connect a connecting loop between the heating device 71 and the power supply 72, thereby solving the problems that in the related art, the condensation on the surface of the cabinet is prevented in a mode of installing heat preservation cotton in the cabinet, and the condensation prevention effect is poor. The cabinet is heated through the heating device, and the effect of effectively preventing the surface of the cabinet from being condensed is achieved.
Fig. 9 is a flowchart of the operation of the control device of the cabinet according to the embodiment of the present application. As shown in fig. 9, the method comprises the following steps:
the heating device is an electric heating film arranged on the surface of a target panel, the temperature limiter is arranged between the electric heating film and the target panel, the electric heating film is firstly opened to heat the target panel, the temperature of the target panel reaches the set temperature of the temperature limiter, the temperature limiter acts, a connecting loop between the electric heating film and a power supply is cut off, the temperature of the target panel gradually falls back, correspondingly, the temperature limiter automatically cools down, when the temperature of the temperature limiter is smaller than the set temperature, the temperature limiter resets, the connecting loop between the electric heating film and the power supply is switched on, a controller and a temperature detection device are cancelled, and the purpose of preventing condensation on the surface of the cabinet is achieved through a pure electric control mode.
The above are merely examples of the present invention, and are not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (10)
1. A control apparatus for a cabinet, comprising:
the temperature and humidity sensor is arranged in a preset distance range outside the cabinet;
a temperature sensor disposed on a target panel of the cabinet;
the controller is respectively connected with the temperature and humidity sensor and the temperature sensor and is used for determining the dew point temperature outside the cabinet according to the temperature data and the humidity data acquired by the temperature and humidity sensor, comparing the dew point temperature with the temperature data acquired by the temperature sensor and outputting a control signal according to a comparison result;
the heating device is in communication connection with the controller and is used for executing or terminating the heating action on the target panel according to the control signal; and
and the power supply is respectively connected with the controller and the heating device.
2. The apparatus of claim 1, further comprising: and the switching device is arranged between the power supply and the heating device, consists of a coil and a contact, and is used for controlling the contact to be closed and opened according to the control signal so as to switch on or off a connecting loop between the heating device and the power supply.
3. The apparatus of claim 2, further comprising: the input end of the switching power supply is connected with the power supply, and the output end of the switching power supply is connected with the controller and the switching device respectively.
4. The apparatus of claim 1, wherein the heating device is an electro-thermal film disposed on an inner surface of the target panel.
5. The apparatus of claim 1, wherein the temperature and humidity sensor is disposed on an outer surface of the target panel and the temperature sensor is disposed on an inner surface of the target panel.
6. The apparatus of claim 3, further comprising a first circuit breaker disposed between the heater and the power source; a second circuit breaker disposed between the switching power supply and the power supply.
7. A control apparatus for a cabinet, comprising:
a heating device for heating a target panel of the cabinet;
the power supply is connected with the heating device and used for supplying power to the heating device; and
and the temperature limiter is arranged on the target panel, is connected in series between the heating device and the power supply, and is used for executing action or resetting based on the temperature of the target panel so as to disconnect or connect a connecting loop between the heating device and the power supply.
8. The apparatus of claim 7, wherein the heating device is an electro-thermal film disposed on an inner surface of the target panel.
9. The apparatus of claim 8, wherein the temperature limiter is disposed on an inner surface of the target panel or on an outer surface of the electrothermal film.
10. The apparatus of claim 7, further comprising a circuit breaker disposed between the temperature limiter and the power source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121194978.8U CN215647913U (en) | 2021-05-31 | 2021-05-31 | Control device of cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121194978.8U CN215647913U (en) | 2021-05-31 | 2021-05-31 | Control device of cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215647913U true CN215647913U (en) | 2022-01-25 |
Family
ID=79940278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121194978.8U Active CN215647913U (en) | 2021-05-31 | 2021-05-31 | Control device of cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215647913U (en) |
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2021
- 2021-05-31 CN CN202121194978.8U patent/CN215647913U/en active Active
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