CN110831402A - Heat dissipation device of electric cabinet, electric cabinet and heat dissipation method - Google Patents
Heat dissipation device of electric cabinet, electric cabinet and heat dissipation method Download PDFInfo
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- CN110831402A CN110831402A CN201910988843.XA CN201910988843A CN110831402A CN 110831402 A CN110831402 A CN 110831402A CN 201910988843 A CN201910988843 A CN 201910988843A CN 110831402 A CN110831402 A CN 110831402A
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20209—Thermal management, e.g. fan control
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20172—Fan mounting or fan specifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
Abstract
The invention relates to a heat dissipation device of an electric cabinet, the electric cabinet and a heat dissipation method, wherein the heat dissipation device comprises: the contact type heat dissipation part is arranged on a heat source device in the electric cabinet; the fan is arranged in the electric cabinet and used for dissipating heat; the temperature sensing bulb is arranged on the contact type heat dissipation member and used for detecting the temperature of the contact type heat dissipation member; and the mainboard is used for controlling the working state of the fan according to the temperature detected by the temperature sensing bulb. According to the technical scheme provided by the invention, the temperature of the contact type radiating piece is detected through the temperature sensing bulb, the working state of the fan is controlled according to the temperature detected by the temperature sensing bulb, the heat accumulated by the heat source device in the electric cabinet is led out by the contact type radiating piece and is directly cooled and radiated by the fan, and the radiating effect is greatly improved.
Description
Technical Field
The invention relates to the technical field of electric cabinet heat dissipation, in particular to a heat dissipation device of an electric cabinet, the electric cabinet and a heat dissipation method.
Background
With the vigorous development of the house building industry in China, commercial air conditioners play an increasingly important role in the house building industry. However, the limited building floor space limits the size and number of units, and therefore, there is a strong market need for compact, energy-efficient units. However, for compact units, there is a problem: under the condition of size shrinkage, an electric cabinet of the unit also becomes smaller, the heat dissipation of internal components becomes severe, and the service life and the operation reliability of electronic components are seriously influenced.
At present, the industry generally adopts a method of 'radiating fins + fixed frequency fans' to radiate heat of components inside an electric cabinet, for example, in the related art, a method of directly inducing air by an external electric cabinet and attaching radiating fins to a middle electric cabinet is used to reduce the temperature inside the electric cabinet. However, the heat sink adopted by this method is not high in thermal conductivity due to the obstruction of the panel of the electronic control box, and the heat dissipation effect is general. And, because the fan is constantly running, not only is the energy consumption increased, but also continuous heat is generated by the fan.
Disclosure of Invention
In view of the above, the present invention provides a heat dissipation apparatus for an electric cabinet, and a heat dissipation method, so as to solve the problems in the prior art that when heat dissipation is performed in the electric cabinet by using heat dissipation fins, the heat conductivity is not high due to the action of a partition plate and air, and a fan operates constantly, and therefore, the heat dissipation apparatus consumes much energy and generates much heat.
According to a first aspect of embodiments of the present invention, there is provided a heat dissipation device for an electric cabinet, including:
the contact type heat dissipation part is arranged on a heat source device in the electric cabinet;
the fan is arranged in the electric cabinet and used for dissipating heat;
the temperature sensing bulb is arranged on the contact type heat dissipation member and used for detecting the temperature of the contact type heat dissipation member;
and the mainboard is used for controlling the working state of the fan according to the temperature detected by the temperature sensing bulb.
Preferably, the contact heat sink includes: graphene sheets, and/or heat pipes.
Preferably, if the contact heat sink is a graphene sheet, the graphene sheet is attached to a heat source device with a heat value larger than a threshold value; and/or the presence of a gas in the gas,
if the contact type heat dissipation part is a heat dissipation pipe, the heat dissipation pipe is simultaneously arranged in contact with the heat source device and the wall of the electric cabinet.
Preferably, the fan includes: a fixed frequency fan, and/or a variable frequency fan.
Preferably, if the fan comprises a fixed-frequency fan and a variable-frequency fan, the fixed-frequency fan is arranged in a corner inside the electric cabinet and is used for driving heat flow inside the electric cabinet and dissipating heat;
the variable frequency fan is arranged beside the contact type heat dissipation piece and used for dissipating heat of the contact type heat dissipation piece.
Preferably, the fixed-frequency fan is arranged opposite to the heat source device and the main board in the electric cabinet;
if the heat source device and the main board in the electric cabinet are arranged on the upper part of the electric cabinet,
the fixed-frequency fan is arranged at the lower part of the electric cabinet.
Preferably, the heat sink further includes:
and the air guide window is arranged on the electric cabinet and used for dissipating heat in the electric cabinet.
Preferably, the number of the air guide windows is at least two;
if the number of the air guide windows is two, the air guide windows are respectively arranged on the left side and the right side of the electric cabinet.
Preferably, the air guide window is an electrically controlled louver.
According to a second aspect of the embodiments of the present invention, there is provided an electric cabinet, including:
the heat radiator of the electric cabinet.
According to a third aspect of the embodiments of the present invention, there is provided a heat dissipation method for an electric cabinet, including:
detecting the temperature of the contact type heat dissipation piece through the temperature sensing bulb;
controlling the working state of the fan according to the temperature detected by the temperature sensing bulb;
the contact type heat dissipation part is arranged on a heat source device in the electric cabinet;
the fan is arranged in the electric cabinet and used for dissipating heat.
Preferably, if the fan includes a fixed-frequency fan and a variable-frequency fan, the controlling the working state of the fan includes:
if the temperature detected by the temperature sensing bulb is higher than the ambient temperature, controlling the variable frequency fan to be started; and/or the presence of a gas in the gas,
and if the temperature detected by the temperature sensing bulb is less than or equal to the ambient temperature, controlling the fixed-frequency fan to be started, and controlling the variable-frequency fan to be closed.
Preferably, if the temperature detected by the thermal bulb is greater than the ambient temperature, the variable frequency fan is controlled to be turned on, including:
if the temperature detected by the temperature sensing bulb is between the ambient temperature and the low-frequency threshold temperature, controlling the variable-frequency fan to operate at a low frequency, and turning off the fixed-frequency fan; and/or the presence of a gas in the gas,
if the temperature detected by the temperature sensing bulb is between the low-frequency threshold temperature and the high-frequency threshold temperature, controlling the variable frequency fan to operate at the medium frequency, and closing the fixed frequency fan; and/or the presence of a gas in the gas,
if the temperature detected by the temperature sensing bulb is higher than the high-frequency threshold temperature, controlling the variable-frequency fan to operate at high frequency, and simultaneously starting the fixed-frequency fan; the environment temperature is less than the low-frequency threshold temperature and less than the high-frequency threshold temperature.
Preferably, if the electric cabinet is provided with an air guide window, the electric cabinet further comprises:
and if the temperature detected by the temperature sensing bulb is higher than the ambient temperature, controlling the air guide window to be opened.
According to a fourth aspect of the embodiments of the present invention, there is provided an electric cabinet, including:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
detecting the temperature of the contact type heat dissipation piece through the temperature sensing bulb;
controlling the working state of the fan according to the temperature detected by the temperature sensing bulb;
the contact type heat dissipation part is arranged on a heat source device in the electric cabinet;
the fan is arranged in the electric cabinet and used for dissipating heat.
The technical scheme provided by the embodiment of the invention can have the following beneficial effects:
detect the temperature of contact radiating piece through the temperature sensing package, according to the temperature that the temperature sensing package detected, the operating condition of control fan, the heat that the heat source device accumulations in the electric cabinet is derived by contact radiating piece, directly cools off the heat dissipation by the fan again, and the radiating effect has obtained very big promotion, in addition, owing to can also be according to the operating condition of the temperature nimble control fan that the temperature sensing package detected, not only accurate control the switch of fan, energy consumption and radiating effect, still greatly reduced the fan and lasted the extra heat that the operation produced.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a schematic diagram illustrating a heat sink of an electrical cabinet according to an exemplary embodiment;
fig. 2 is a flowchart illustrating a method of dissipating heat of an electric cabinet according to an exemplary embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
Fig. 1 is a schematic view illustrating a heat dissipating apparatus for an electric cabinet according to an exemplary embodiment, as shown in fig. 1, the apparatus including:
the contact type heat dissipation part 3 is arranged on a heat source device in the electric cabinet;
the fan is arranged in the electric cabinet and used for dissipating heat;
the temperature sensing bulb 2 is arranged on the contact type heat dissipation member and used for detecting the temperature of the contact type heat dissipation member;
and the main board 5 is used for controlling the working state of the fan according to the temperature detected by the temperature sensing bulb.
It should be noted that 4 in fig. 1 represents a terminal block for receiving power supplied from the motherboard to the fan and the components.
It can be understood that, the technical scheme that this embodiment provided, through the temperature of thermal bulb detection contact radiating piece, according to the temperature that the thermal bulb detected, the operating condition of control fan, the heat that heat source device accumulations in the electric cabinet is derived by contact radiating piece, by the direct cooling heat dissipation of fan again, the radiating effect has obtained very big promotion, in addition, owing to can also be according to the operating condition of the temperature nimble control fan that the thermal bulb detected, not only accurate control the switch of fan, energy consumption and radiating effect, still greatly reduced the fan and lasted the extra heat that the operation produced.
Preferably, the contact heat sink 3 includes: graphene sheets, and/or heat pipes.
Preferably, if the contact heat sink 3 is a graphene sheet, the graphene sheet is attached to a heat source device with a heat value greater than a threshold value; and/or the presence of a gas in the gas,
if the contact type heat dissipation part 3 is a heat dissipation pipe, the heat dissipation pipe is simultaneously in contact with the heat source device and the wall of the electric cabinet.
It should be noted that the threshold is set according to historical empirical values or experimental data.
It can be understood that the graphene sheet has high thermal conductivity, and can efficiently conduct heat of the heating element. In specific practice, for components with high-counterweight heat emission (heat source devices with heat emission larger than a threshold value), graphene sheets with high heat conductivity are adopted for heat dissipation; the other heating common components are radiated in a natural convection mode.
If the contact type heat dissipation part is a heat dissipation pipe, the heat dissipation pipe is simultaneously in contact with the heat source device and the box wall of the electric control box, so that heat in the heat dissipation pipe can be effectively discharged through the box wall of the electric control box. However, the method is passive heat dissipation instead of active heat dissipation, and finally, the heat dissipated by the heat dissipation pipe can be conducted to the outside only through contact with the electric cabinet.
Preferably, the fan includes: a fixed frequency fan 7, and/or a variable frequency fan 1.
Preferably, if the fan comprises a fixed-frequency fan 7 and a variable-frequency fan 1, the fixed-frequency fan 7 is arranged in a corner inside the electric cabinet and is used for driving heat flow inside the electric cabinet and dissipating heat;
the variable frequency fan 1 is arranged beside the contact type heat dissipation piece 3 and used for dissipating heat of the contact type heat dissipation piece.
It can be understood that the variable frequency fan is adopted, the running frequency of the fan is adjusted according to the heat load, and the energy consumption and the heat dissipation effect are accurately controlled and whether the fan is started or not is judged; except for the variable frequency fan aiming at the heat dissipation of components, the fixed frequency fan aiming at the air flow circulation inside the electric cabinet is also used, different heat dissipation control methods are formulated according to different spatial characteristics, the energy consumption is accurately controlled and saved, and the heat dissipation effect in the electric cabinet is ensured.
Referring to fig. 1, preferably, the fixed-frequency fan 7 is disposed opposite to the heat source device and the main board in the electric cabinet;
if the heat source device and the main board in the electric cabinet are arranged on the upper part of the electric cabinet,
the fixed-frequency fan 7 is arranged at the lower part of the electric cabinet.
It can be understood that the advantage of setting up like this lies in, can guarantee that the inside air current of electric cabinet is unblocked to circulate, hinders for a short time, discharges the electric cabinet with the heat in the electric cabinet smoothly.
Preferably, the heat sink further includes:
and the air guide window 6 is arranged on the electric cabinet and used for dissipating heat in the electric cabinet.
Preferably, the number of the air guide windows 6 is at least two;
if the number of the air guide windows 6 is two, the air guide windows 6 are respectively arranged on the left side and the right side of the electric cabinet.
Preferably, the air guiding window 6 is an electrically controlled louver.
It can be understood that the air guide window can be communicated with the outside, so that heat inside the electric cabinet is dissipated, and the heat dissipation effect is further improved.
According to an exemplary embodiment of the present invention, there is provided an electric cabinet including:
the heat radiator of the electric cabinet.
It can be understood that, the technical scheme that this embodiment provided, through the temperature of thermal bulb detection contact radiating piece, according to the temperature that the thermal bulb detected, the operating condition of control fan, the heat that heat source device accumulations in the electric cabinet is derived by contact radiating piece, by the direct cooling heat dissipation of fan again, the radiating effect has obtained very big promotion, in addition, owing to can also be according to the operating condition of the temperature nimble control fan that the thermal bulb detected, not only accurate control the switch of fan, energy consumption and radiating effect, still greatly reduced the fan and lasted the extra heat that the operation produced.
Fig. 2 is a flowchart illustrating a method for dissipating heat of an electric cabinet according to an exemplary embodiment, as shown in fig. 2, the method including:
step S11, detecting the temperature of the contact type heat dissipation piece through a temperature sensing bulb;
step S12, controlling the working state of the fan according to the temperature detected by the temperature sensing bulb;
the contact type heat dissipation part is arranged on a heat source device in the electric cabinet;
the fan is arranged in the electric cabinet and used for dissipating heat.
It should be noted that the technical solution provided in this embodiment is applicable to an electrical cabinet.
It can be understood that, the technical scheme that this embodiment provided, through the temperature of thermal bulb detection contact radiating piece, according to the temperature that the thermal bulb detected, the operating condition of control fan, the heat that heat source device accumulations in the electric cabinet is derived by contact radiating piece, by the direct cooling heat dissipation of fan again, the radiating effect has obtained very big promotion, in addition, owing to can also be according to the operating condition of the temperature nimble control fan that the thermal bulb detected, not only accurate control the switch of fan, energy consumption and radiating effect, still greatly reduced the fan and lasted the extra heat that the operation produced.
Preferably, if the fan includes a fixed-frequency fan and a variable-frequency fan, the controlling the working state of the fan includes:
if the temperature detected by the temperature sensing bulb is higher than the ambient temperature, controlling the variable frequency fan to be started; and/or the presence of a gas in the gas,
and if the temperature detected by the temperature sensing bulb is less than or equal to the ambient temperature, controlling the fixed-frequency fan to be started, and controlling the variable-frequency fan to be closed.
Preferably, if the electric cabinet is provided with an air guide window, the electric cabinet further comprises:
and if the temperature detected by the temperature sensing bulb is higher than the ambient temperature, controlling the air guide window to be opened.
It can be understood that the air guide window can be communicated with the outside, so that heat inside the electric cabinet is dissipated, and the heat dissipation effect is further improved.
It can be understood that when the temperature T of the contact heat sink detected by the thermal bulb is greater than the ambient temperature Te, it indicates that the heat generation of the component is already serious, and the heat dissipation simply depending on the ambient temperature does not meet the requirement of maintaining the safety and reliability of the component, and at this time, the variable frequency fan needs to be turned on to perform the forced heat dissipation pertinently. On the contrary, if the temperature T is less than the ambient temperature Te, it is indicated that the heat generation of the components is still low, so that the air flow circulates in the electric cabinet only by turning on the circulating fan and is dissipated through the air guide window.
Preferably, if the temperature detected by the thermal bulb is greater than the ambient temperature, the variable frequency fan is controlled to be turned on, including:
if the temperature detected by the temperature sensing bulb is between the ambient temperature and the low-frequency threshold temperature, controlling the variable-frequency fan to operate at a low frequency, and turning off the fixed-frequency fan; and/or the presence of a gas in the gas,
if the temperature detected by the temperature sensing bulb is between the low-frequency threshold temperature and the high-frequency threshold temperature, controlling the variable frequency fan to operate at the medium frequency, and closing the fixed frequency fan; and/or the presence of a gas in the gas,
if the temperature detected by the temperature sensing bulb is higher than the high-frequency threshold temperature, controlling the variable-frequency fan to operate at high frequency, and simultaneously starting the fixed-frequency fan; the environment temperature is less than the low-frequency threshold temperature and less than the high-frequency threshold temperature.
It should be noted that the low-frequency threshold temperature and the high-frequency threshold temperature are set according to historical empirical values and experimental data.
If the temperature detected by the temperature sensing bulb is between the ambient temperature and the low-frequency threshold temperature, the heat of the component is high at the moment, and the reliability of the component can be influenced, so that the variable-frequency fan is turned on, the fan runs at low frequency (rotating speed), and the component conducting heat through the contact type heat dissipation part is subjected to forced convection heat dissipation.
If the temperature detected by the temperature sensing bulb is between the low-frequency threshold temperature and the high-frequency threshold temperature, the heat of the component is very high at the moment, and the requirement of reliable heat dissipation of the component cannot be met only by a low-frequency fan, so that the frequency of the fan is improved, the fan runs at medium frequency (rotating speed), and the component conducting heat through the contact type heat dissipation piece is subjected to forced convection heat dissipation.
If the temperature detected by the temperature sensing bulb is higher than the high-frequency threshold temperature, the heat dissipation of the components is very bad, the heat is very high, the service life of the components is greatly shortened, the operation reliability of the whole machine is influenced, and even the machine set stops due to faults. At the moment, the running reliability of the unit is preferably considered, the energy consumption is not considered, the frequency of the fan is improved to the highest level, and meanwhile, the circulating fan is turned on, so that the local heat and the overall heat are dissipated through the air guide windows on the two sides of the electric cabinet.
According to an exemplary embodiment of the present invention, there is provided an electric cabinet including:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
detecting the temperature of the contact type heat dissipation piece through the temperature sensing bulb;
controlling the working state of the fan according to the temperature detected by the temperature sensing bulb;
the contact type heat dissipation part is arranged on a heat source device in the electric cabinet;
the fan is arranged in the electric cabinet and used for dissipating heat.
It can be understood that, the technical scheme that this embodiment provided, through the temperature of thermal bulb detection contact radiating piece, according to the temperature that the thermal bulb detected, the operating condition of control fan, the heat that heat source device accumulations in the electric cabinet is derived by contact radiating piece, by the direct cooling heat dissipation of fan again, the radiating effect has obtained very big promotion, in addition, owing to can also be according to the operating condition of the temperature nimble control fan that the thermal bulb detected, not only accurate control the switch of fan, energy consumption and radiating effect, still greatly reduced the fan and lasted the extra heat that the operation produced.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.
It should be noted that the terms "first," "second," and the like in the description of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present invention, the meaning of "a plurality" means at least two unless otherwise specified.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (15)
1. A heat dissipation device of an electric cabinet is characterized by comprising:
the contact type heat dissipation part is arranged on a heat source device in the electric cabinet;
the fan is arranged in the electric cabinet and used for dissipating heat;
the temperature sensing bulb is arranged on the contact type heat dissipation member and used for detecting the temperature of the contact type heat dissipation member;
and the mainboard is used for controlling the working state of the fan according to the temperature detected by the temperature sensing bulb.
2. The heat dissipating device of claim 1,
the contact heat sink includes: graphene sheets, and/or heat pipes.
3. The heat dissipating device of claim 2,
if the contact type heat dissipation piece is a graphene sheet, the graphene sheet is attached to a heat source device with the heat productivity larger than a threshold value; and/or the presence of a gas in the gas,
if the contact type heat dissipation part is a heat dissipation pipe, the heat dissipation pipe is simultaneously arranged in contact with the heat source device and the wall of the electric cabinet.
4. The heat dissipating device of claim 1,
the fan includes: a fixed frequency fan, and/or a variable frequency fan.
5. The heat dissipating device of claim 4,
if the fan comprises a fixed-frequency fan and a variable-frequency fan, the fixed-frequency fan is arranged in a corner inside the electric cabinet and is used for driving heat flow inside the electric cabinet and dissipating heat;
the variable frequency fan is arranged beside the contact type heat dissipation piece and used for dissipating heat of the contact type heat dissipation piece.
6. The heat dissipating device of claim 5,
the fixed-frequency fan is arranged opposite to the heat source device and the main board in the electric cabinet;
if the heat source device and the main board in the electric cabinet are arranged on the upper part of the electric cabinet,
the fixed-frequency fan is arranged at the lower part of the electric cabinet.
7. The heat dissipating device according to any one of claims 1 to 6, further comprising:
and the air guide window is arranged on the electric cabinet and used for dissipating heat in the electric cabinet.
8. The heat dissipating device of claim 7,
the number of the air guide windows is at least two;
if the number of the air guide windows is two, the air guide windows are respectively arranged on the left side and the right side of the electric cabinet.
9. The heat dissipating device of claim 8,
the air guide window is an electric control shutter.
10. An electric cabinet, comprising:
the heat dissipating apparatus for an electric cabinet as set forth in any one of claims 1 to 9.
11. A heat dissipation method of an electric cabinet is characterized by comprising the following steps:
detecting the temperature of the contact type heat dissipation piece through the temperature sensing bulb;
controlling the working state of the fan according to the temperature detected by the temperature sensing bulb;
the contact type heat dissipation part is arranged on a heat source device in the electric cabinet;
the fan is arranged in the electric cabinet and used for dissipating heat.
12. The method of claim 11, wherein if the fan comprises a fixed frequency fan and a variable frequency fan, the controlling the operating status of the fan comprises:
if the temperature detected by the temperature sensing bulb is higher than the ambient temperature, controlling the variable frequency fan to be started; and/or the presence of a gas in the gas,
and if the temperature detected by the temperature sensing bulb is less than or equal to the ambient temperature, controlling the fixed-frequency fan to be started, and controlling the variable-frequency fan to be closed.
13. The method of claim 12, wherein the controlling the variable frequency fan to turn on if the temperature detected by the thermal bulb is greater than the ambient temperature comprises:
if the temperature detected by the temperature sensing bulb is between the ambient temperature and the low-frequency threshold temperature, controlling the variable-frequency fan to operate at a low frequency, and turning off the fixed-frequency fan; and/or the presence of a gas in the gas,
if the temperature detected by the temperature sensing bulb is between the low-frequency threshold temperature and the high-frequency threshold temperature, controlling the variable frequency fan to operate at the medium frequency, and closing the fixed frequency fan; and/or the presence of a gas in the gas,
if the temperature detected by the temperature sensing bulb is higher than the high-frequency threshold temperature, controlling the variable-frequency fan to operate at high frequency, and simultaneously starting the fixed-frequency fan; the environment temperature is less than the low-frequency threshold temperature and less than the high-frequency threshold temperature.
14. The method of claim 12, wherein if the electric cabinet is provided with an air guiding window, the method further comprises:
and if the temperature detected by the temperature sensing bulb is higher than the ambient temperature, controlling the air guide window to be opened.
15. An electric cabinet, comprising:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
detecting the temperature of the contact type heat dissipation piece through the temperature sensing bulb;
controlling the working state of the fan according to the temperature detected by the temperature sensing bulb;
the contact type heat dissipation part is arranged on a heat source device in the electric cabinet;
the fan is arranged in the electric cabinet and used for dissipating heat.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910988843.XA CN110831402A (en) | 2019-10-17 | 2019-10-17 | Heat dissipation device of electric cabinet, electric cabinet and heat dissipation method |
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| CN201910988843.XA CN110831402A (en) | 2019-10-17 | 2019-10-17 | Heat dissipation device of electric cabinet, electric cabinet and heat dissipation method |
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| CN110831402A true CN110831402A (en) | 2020-02-21 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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