CN106765878A - The control method of electric-controlled box and electric-controlled box - Google Patents
The control method of electric-controlled box and electric-controlled box Download PDFInfo
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- CN106765878A CN106765878A CN201611060730.6A CN201611060730A CN106765878A CN 106765878 A CN106765878 A CN 106765878A CN 201611060730 A CN201611060730 A CN 201611060730A CN 106765878 A CN106765878 A CN 106765878A
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- electric
- controlled box
- temperature
- processor
- environment temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a kind of electric-controlled box, including processor, heating control module, heater circuit and power module；Power module is connected with processor and computer heating control mould respectively, and heating control module is connected with heater circuit；On outdoor unit during electricity, processor obtains the environment temperature in the electric-controlled box, and when the environment temperature for getting is less than the first preset temperature, current mode of operation is switched to park mode by processor；When environment temperature in electric-controlled box is less than the second preset temperature, heating control module controls the heater circuit to be heated.The invention also discloses a kind of control method of electric-controlled box.The environment temperature that the present invention is realized in electric-controlled box is electric-controlled box heating by heater circuit less than the second preset temperature; and the environment temperature in electric-controlled box enters park mode less than the first preset temperature processor; and then electronic component in electric-controlled box can be protected, improve the service life of air-conditioning.
Description
Technical field
The present invention relates to air-conditioning technical field, more particularly to a kind of electric-controlled box and electric-controlled box control method.
Background technology
With the fast development of air-conditioning technical, air-conditioning plays more and more important role in daily life.
But, the electronic component of the outdoor unit of air-conditioning operationally has temperature limiting, and general electronic component is minimum
Operating ambient temperature be -20 DEG C, if environment temperature less than electronic component minimum operating temperature, can cause electronics unit device
Part unstable working condition, influences the working characteristics of electronic component, and then influences the performance of operation of air conditioner, or even surpasses in temperature
Air-conditioning can be caused to be stopped when going out the operating temperature range of electronic component.For example, in Russia, south poles, plateau snow mountain
Deng the air-conditioning that place is installed, because the temperature in the environment residing for air-conditioning is relatively low, cause existing air-conditioning work performance relatively low, very
Extremely cannot normal work.
The content of the invention
The present invention provides the control method of a kind of electric-controlled box and electric-controlled box, it is intended to solve the air conditioner electronic unit when temperature is too low
Device unstable working condition and influence the performance of operation of air conditioner to even result in the technical problem that air-conditioning is stopped.
To achieve the above object, a kind of electric-controlled box that the present invention is provided, is applied to the outdoor unit of air-conditioning, including processor,
Heating control module, heater circuit and power module；The power module respectively with the processor and the computer heating control
Mould is connected, and the heating control module is connected with the heater circuit；
On the outdoor unit during electricity, the processor obtains the environment temperature in the electric-controlled box, in the ring for getting
When border temperature is less than the first preset temperature, current mode of operation is switched to park mode by the processor；
When environment temperature in the electric-controlled box is less than the second preset temperature, the heating control module control is described to be added
Heater circuit is heated, wherein, second preset temperature is more than or equal to first preset temperature.
Preferably, the heating control module includes on-off circuit, negative temperature coefficient NTC thermistor and partial pressure electricity
Resistance；The divider resistance is connected with the NTC thermistor and the power module respectively；One end of the on-off circuit with
The heater circuit connection, the other end is connected to the common port between the divider resistance and the NTC thermistor；
When environment temperature in the electric-controlled box is less than the second preset temperature, the voltage of the common port makes the switch
Circuit turn-on, so that the heater circuit is heated.
Preferably, when the environment temperature in the electric-controlled box is more than three preset temperatures, the voltage of the common port makes
The on-off circuit is disconnected, so that the heater circuit stops heating, wherein, the 3rd preset temperature is more than described second
Preset temperature.
Preferably, when processor is in park mode, the processor obtains the environment temperature in the electric-controlled box in real time
Degree, and when the environment temperature for getting is more than first preset temperature, the processor switches current mode of operation
It is normal mode.
Preferably, the electric-controlled box also includes negative temperature coefficient NTC temperature sensors, and the NTC thermistor is described
The internal resistance of NTC temperature sensors.
Preferably, the box body outer wall and inboard wall of cartridge of the electric-controlled box are provided with insulation material.
Preferably, the electric-controlled box is additionally provided with the fan being connected with the on-off circuit.
Additionally, to achieve the above object, the present invention also provides a kind of control method of electric-controlled box, is applied to the outdoor of air-conditioning
Machine, the electric-controlled box include processor, heating control module, heater circuit and power module, the power module respectively with
The processor and the computer heating control mould are connected, and the heating control module is connected with the heater circuit；
The control method of the electric-controlled box is comprised the following steps：
On the outdoor unit during electricity, processor obtains the environment temperature in the electric-controlled box；
When the environment temperature for getting is less than the first preset temperature, the processor switches to current mode of operation
Park mode；
It is described to add when the environment temperature being under park mode in the electric-controlled box in processor is less than the second preset temperature
Thermal control module controls the heater circuit to be heated, wherein, second preset temperature is pre- more than or equal to described first
If temperature.
Preferably, after the step of heating control module controls the heater circuit to be heated, the electric-controlled box
Control method also include：
When environment temperature in the electric-controlled box is more than three preset temperatures, the heating control module control is described to be added
Heater circuit stops heating, wherein, the 3rd preset temperature is more than second preset temperature.
Preferably, after the step of heating control module controls the heater circuit to be heated, the electric-controlled box
Control method also include：
When processor is in park mode, the processor obtains the environment temperature in the electric-controlled box in real time；
When the environment temperature for getting is more than first preset temperature, the processor cuts current mode of operation
It is changed to normal mode.
By on the outdoor unit, during electricity, the processor obtains the environment temperature in the electric-controlled box to the present invention,
When the environment temperature for getting is less than the first preset temperature, current mode of operation is switched to park mode by the processor；
When environment temperature in the electric-controlled box is less than the second preset temperature, the heating control module controls the heater circuit to enter
Row heating, it is electric-controlled box heating by heater circuit less than the second preset temperature to realize the environment temperature in electric-controlled box, and
Environment temperature in electric-controlled box enters park mode less than the first preset temperature processor, and then can protect in electric-controlled box
Electronic component, it is to avoid electric-controlled box runs when temperature is relatively low and influences the performance of air-conditioning, improves the service life of air-conditioning.
Brief description of the drawings
Fig. 1 is the electrical block diagram of the embodiment of electric-controlled box of the present invention；
Fig. 2 is the electrical block diagram of another embodiment of electric-controlled box of the present invention；
Fig. 3 is the schematic flow sheet of the control method first embodiment of electric-controlled box of the present invention；
Fig. 4 is the schematic flow sheet of the control method second embodiment of electric-controlled box of the present invention.
Drawing reference numeral explanation：
| Label | Title | Label | Title |
| 10 | Processor | 20 | Heating control module |
| 30 | Heater circuit | 40 | Power module |
| 21 | On-off circuit | 22 | NTC thermistor |
| 23 | Divider resistance |
The realization of the object of the invention, functional characteristics and advantage will be described further referring to the drawings in conjunction with the embodiments.
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
The present invention provides a kind of electric-controlled box.Reference picture 1, Fig. 1 is that the circuit structure of electric-controlled box first embodiment of the present invention shows
It is intended to.
In the present embodiment, the electric-controlled box is applied to the outdoor unit of air-conditioning, and the electric-controlled box includes processor 10, computer heating control
Module 20, heater circuit 30 and power module 40.
Power module 40 is connected with the processor 10 and the computer heating control mould 20 respectively, the heating control module 20
It is connected with the heater circuit 30.Wherein, power module 40 is the power supply of outdoor unit.
On the outdoor unit during electricity, the processor 10 obtains the environment temperature in the electric-controlled box, what is got
When environment temperature is less than the first preset temperature, current mode of operation is switched to park mode by the processor 10.
Wherein, the first preset temperature be outdoor unit each electronic component can normal work when minimum temperature, i.e.,
According to outdoor unit, each electronic component is reasonably set first preset temperature.
In the present embodiment, it is the electronic component of protection air-conditioner outdoor unit, in electric-controlled box described in processor 10
When environment temperature is less than the first preset temperature, current mode of operation is switched to park mode, and then entrance to stop by processor 10
Dormancy state, now, processor 10 can only detect the environment temperature in the environment temperature i.e. electric-controlled box of current environment.
When environment temperature in the electric-controlled box is less than the second preset temperature, the heating control module 20 controls described
Heater circuit 30 is heated, wherein, second preset temperature is more than or equal to first preset temperature.
Wherein, the second preset temperature can reasonably be set according to demand.In the present embodiment, heating control module
20 can be real with by thermosensitive circuit controlling switch circuit including the on-off circuit that thermistor and heater circuit 30 are connected etc.
Now according to the environment temperature control heater circuit work in electric-controlled box.Or, heating control module 20 can also include low temperature resistant
Control chip and temperature sensor, the environment temperature in the electric-controlled box is the temperature of temperature sensor detection less than the
During two preset temperatures, the control chip of heating control module 20 controls the heater circuit 30 to be heated.
It is emphasized that for improve heater circuit 30 heated when electric-controlled box in the elevated efficiency of temperature and speed,
The box body outer wall and inboard wall of cartridge of electric-controlled box are provided with insulation material, reduce the loss of heat in electric-controlled box, it is preferred that the electric-controlled box
It is sealing electric-controlled box.
Further, in one embodiment, as shown in Fig. 2 heating control module 20 includes on-off circuit 21, NTC
(Negative Temperature Coefficient, negative temperature coefficient) thermistor 22 and divider resistance 23.
Divider resistance 23 is connected with the NTC thermistor 22 and the power module 40 respectively；The on-off circuit
21 one end is connected with the heater circuit 30, the other end be connected to the divider resistance 23 and the NTC thermistor 22 it
Between common port, be then only connected to the link node of divider resistance 23 and the NTC thermistor 22.
In the present embodiment, on-off circuit 21 includes that triode and/or mos are managed, and triode and/or mos pipes base
Pole is connected to the common port between divider resistance 23 and the NTC thermistor 22.The resistance value of NTC thermistor 22 is with temperature
The reduction of degree and become big, and then cause that the voltage of common port between divider resistance 23 and the NTC thermistor 22 becomes big.
When environment temperature in the electric-controlled box is less than the second preset temperature, the resistance value of NTC thermistor 22 is enough
Greatly so that the voltage of the common port between divider resistance 23 and the NTC thermistor 22 can make the on-off circuit 21
Turn on, and then heater circuit 30 is turned on therewith, and then heater circuit 30 is heated, so that the temperature in electric-controlled box is raised.
Wherein, the second preset temperature is configured according to NTC thermistor 22, divider resistance 23 and on-off circuit 21,
Specifically, when the environment temperature of electric-controlled box local environment is less than the second preset temperature, the partial pressure of NTC thermistor 22 is partial pressure
The voltage of the common port between resistance 23 and the NTC thermistor 22 ensure that on-off circuit 21 is turned on.
It is emphasized that the second preset temperature is more than or equal to first preset temperature, and then enter in processor 10
When entering dormancy, heater circuit 30 has started to work, and the electric-controlled box for enabling in a short time is improved to the second default temperature temperature
On degree, so that processor 10 and outdoor unit normal work as early as possible.
Preferably, electric-controlled box also includes negative temperature coefficient NTC temperature sensors, and the NTC thermistor 22 is the NTC
The internal resistance of temperature sensor.
In the present embodiment, processor 10 can obtain the temperature detected by the NTC temperature sensors, will the NTC
Temperature detected by temperature sensor is used as the environment temperature in electric-controlled box.
Further, it is described when the environment temperature in the electric-controlled box is more than three preset temperatures in another embodiment
The voltage of common port disconnects the on-off circuit 21, so that the heater circuit 30 stops heating, wherein, the described 3rd is pre-
If temperature is more than second preset temperature.
In the present embodiment, when heater circuit 30 is heated, the temperature in electric-controlled box gradually rises, i.e., in electric-controlled box
Environment temperature gradually rise, the resistance value of NTC thermistor 22 is gradually reduced, and the environment temperature in the electric-controlled box is more than
During three preset temperatures, the resistance value of NTC thermistor 22 is sufficiently small so that divider resistance 23 and the NTC thermistor 22
Between the voltage of common port can end the on-off circuit 21, and then stop being powered for heater circuit 30, that is, heat
Circuit 30 is stopped.
Further, in another embodiment, when processor 10 is in park mode, processor 10 obtains the electricity in real time
Environment temperature in control box, and when the environment temperature for getting is more than first preset temperature, the processor 10 ought
Preceding mode of operation switches to normal mode.
In the present embodiment, when processor 10 is in park mode, processor 10 switches by current mode of operation
For park mode be enter resting state after, when heater circuit 30 begins to warm up, the environment temperature of the local environment of processor 10
Gradually rise, processor 10 passes through to obtain environment temperature in the electric-controlled box in real time, in order to determine whether to need by
Mode of operation switches to normal mode.When the environment temperature for getting is more than first preset temperature, the processor 10
Current mode of operation is switched into normal mode, so that the normal work of processor 10.
Preferably, in order to when heater circuit 30 is heated, the temperature in electric-controlled box can uniformly rise, and electric-controlled box is additionally provided with
The fan being connected with the on-off circuit 21.
The electric-controlled box that the present embodiment is proposed, by the outdoor unit, during electricity, the processor 10 obtains described automatically controlled
Environment temperature in box, when the environment temperature for getting is less than the first preset temperature, the processor 10 is by current work
Pattern switching is park mode；When environment temperature in the electric-controlled box is less than the second preset temperature, the computer heating control mould
Block 20 controls the heater circuit 30 to be heated, and the environment temperature realized in electric-controlled box passes through less than the second preset temperature
Heater circuit 30 is electric-controlled box heating, and environment temperature in electric-controlled box enters dormancy less than the first preset temperature processor 10
Pattern, and then the electronic component in electric-controlled box can be protected, it is to avoid electric-controlled box runs when temperature is relatively low and influences air-conditioning
Performance, improves the service life of air-conditioning.
The present invention further provides a kind of control method of electric-controlled box.
Reference picture 3, Fig. 3 is the schematic flow sheet of the control method first embodiment of electric-controlled box of the present invention.
In the present embodiment, the control method of the electric-controlled box is applied to the outdoor unit of air-conditioning, and the electric-controlled box includes processor
10th, heating control module 20, heater circuit 30 and power module 40.Power module 40 respectively with the processor 10 and described
Computer heating control mould 20 is connected, and the heating control module 20 is connected with the heater circuit 30.Wherein, power module 40 is outdoor
The power supply of machine.
Heating control module 20 can include low temperature resistant control chip and temperature sensor, in the electric-controlled box
When environment temperature is that the temperature that temperature sensor is detected is less than the second preset temperature, the control chip control of heating control module 20
The heater circuit 30 is heated.Or, heating control module 20 includes on-off circuit 21, NTC (Negative
Temperature Coefficient, negative temperature coefficient) thermistor 22 and divider resistance 23.Divider resistance 23 respectively with
The NTC thermistor 22 and the power module 40 are connected；One end of the on-off circuit 21 and the heater circuit 30
Connection, the other end is connected to the common port between the divider resistance 23 and the NTC thermistor 22, is then only connected to partial pressure electricity
Resistance 23 and the link node of the NTC thermistor 22.It is cost-effective in the present embodiment, the latter can be used.
Wherein, on-off circuit 21 includes that triode and/or mos are managed, and the base stage of triode and/or mos pipes is connected to
Common port between divider resistance 23 and the NTC thermistor 22.The resistance value of NTC thermistor 22 is with the reduction of temperature
And become big, and then cause that the voltage of the common port between divider resistance 23 and the NTC thermistor 22 becomes big.
The control method of the electric-controlled box is comprised the following steps：
Step S10, on the outdoor unit during electricity, processor 10 obtains the environment temperature in the electric-controlled box；
In the present embodiment, electric-controlled box also includes negative temperature coefficient NTC temperature sensors, and the NTC thermistor 22 is
The internal resistance of the NTC temperature sensors.On the outdoor unit during electricity, detected by the processor 10 NTC temperature sensors
Temperature, temperature that will be detected by the NTC temperature sensors is used as the environment temperature in electric-controlled box.
Step S20, when the environment temperature for getting is less than the first preset temperature, the processor 10 is by current work
Pattern switching is park mode；
Wherein, the first preset temperature be outdoor unit each electronic component can normal work when minimum temperature, i.e.,
According to outdoor unit, each electronic component is reasonably set first preset temperature.
In the present embodiment, it is the electronic component of protection air-conditioner outdoor unit, in electric-controlled box described in processor 10
When environment temperature is less than the first preset temperature, current mode of operation is switched to park mode, and then entrance to stop by processor 10
Dormancy state, now, processor 10 can only detect the environment temperature of current environment.
Step S30, the environment temperature being under park mode in the electric-controlled box in processor is less than the second preset temperature
When, the heating control module 20 controls the heater circuit 30 to be heated, wherein, second preset temperature is more than or waits
In first preset temperature.
Wherein, the second preset temperature is configured according to NTC thermistor 22, divider resistance 23 and on-off circuit 21,
Specifically, when the environment temperature of electric-controlled box local environment is less than the second preset temperature, the partial pressure of NTC thermistor 22 is partial pressure
The voltage of the common port between resistance 23 and the NTC thermistor 22 ensure that on-off circuit 21 is turned on.
Require emphasis when, the second preset temperature be more than the first preset temperature when, no matter whether processor 10 is currently located
In park mode, as long as the environment temperature in electric-controlled box is less than the second preset temperature, heating control module 20 can control institute
Heater circuit 30 is stated to be heated.
In the present embodiment, when the environment temperature in the electric-controlled box is less than the second preset temperature, the computer heating control
Module 20 controls the heater circuit 30 to be heated, and specifically, the environment temperature in the electric-controlled box is preset less than second
During temperature, the resistance value of NTC thermistor 22 is sufficiently large so that the public affairs between divider resistance 23 and the NTC thermistor 22
The voltage at end can be turned on the on-off circuit 21 altogether, and then heater circuit 30 is turned on therewith, and then heater circuit 30 enters
Row heating, so that the temperature in electric-controlled box is raised.
For improve heater circuit 30 heated when electric-controlled box in the elevated efficiency of temperature and speed, outside the box body of electric-controlled box
Wall and inboard wall of cartridge are provided with insulation material, reduce the loss of heat in electric-controlled box, it is preferred that the electric-controlled box is sealing electric-controlled box.
In order to when heater circuit 30 is heated, the temperature in electric-controlled box can uniformly rise, and electric-controlled box is additionally provided with and the on-off circuit
The fan of 21 connections.
Further, in one embodiment, after step S30, the control method of the electric-controlled box also includes：In the electricity
When environment temperature in control box is more than three preset temperatures, the heating control module 20 controls the heater circuit 30 to stop adding
Heat, wherein, the 3rd preset temperature is more than second preset temperature.
In the present embodiment, when heater circuit 30 is heated, the temperature in electric-controlled box gradually rises, i.e., in electric-controlled box
Environment temperature gradually rise, the resistance value of NTC thermistor 22 is gradually reduced, and the environment temperature in the electric-controlled box is more than
During three preset temperatures, the resistance value of NTC thermistor 22 is sufficiently small so that divider resistance 23 and the NTC thermistor 22
Between the voltage of common port can end the on-off circuit 21, and then stop being powered for heater circuit 30, that is, heat
Circuit 30 is stopped.
The control method of the electric-controlled box that the present embodiment is proposed, by the outdoor unit, during electricity, processor 10 obtains institute
The environment temperature in electric-controlled box is stated, then when the environment temperature for getting is less than the first preset temperature, the processor 10 will
Current mode of operation switches to park mode, when then the environment temperature in the electric-controlled box is less than the second preset temperature,
The heating control module 20 controls the heater circuit to be heated, and the environment temperature realized in electric-controlled box is less than second
Preset temperature is that electric-controlled box is heated by heater circuit 30, and environment temperature in electric-controlled box is processed less than the first preset temperature
Device 10 enters park mode, and then can protect the electronic component in electric-controlled box, it is to avoid electric-controlled box runs when temperature is relatively low
And the performance of air-conditioning is influenceed, improve the service life of air-conditioning.
The second embodiment of the control method of electric-controlled box of the present invention, reference picture 4, in this implementation are proposed based on first embodiment
In example, after step S30, the control method of the electric-controlled box also includes：
Step S40, when processor 10 is in park mode, the processor 10 obtains the ring in the electric-controlled box in real time
Border temperature；
In the present embodiment, when processor 10 is in park mode, processor 10 switches by current mode of operation
For park mode be enter resting state after, when heater circuit 30 begins to warm up, the environment temperature of the local environment of processor 10
Gradually rise, processor 10 passes through to obtain environment temperature in the electric-controlled box in real time, in order to determine whether to need by
Mode of operation switches to normal mode.
Step S50, when the environment temperature for getting is more than first preset temperature, the processor 10 will be current
Mode of operation switches to normal mode.
In the present embodiment, when the environment temperature for getting is more than first preset temperature, the processor 10 will
Current mode of operation switches to normal mode, so that the normal work of processor 10.
Require emphasis when, when the second preset temperature is more than the first preset temperature, no matter heater circuit 30 it is current whether
Heating operation is being carried out, processor 10 can in real time obtain the environment temperature in the electric-controlled box, and in the environment for getting
When temperature is more than first preset temperature, current mode of operation is switched into normal mode.
The present embodiment propose electric-controlled box control method, by processor 10 be in park mode when, processor 10
The environment temperature in the electric-controlled box is obtained in real time, then when the environment temperature for getting is more than first preset temperature,
Current mode of operation is switched to normal mode by the processor 10, is realized when environment temperature is more than the first preset temperature
Processor 10 switches to normal mode so that outdoor unit can run at normal temperatures, and then can protect in electric-controlled box
Electronic component, it is to avoid electric-controlled box runs when temperature is relatively low and influences the performance of air-conditioning, further increases making for air-conditioning
Use the life-span.
The preferred embodiments of the present invention are these are only, the scope of the claims of the invention is not thereby limited, it is every to utilize this hair
Equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of electric-controlled box, is applied to the outdoor unit of air-conditioning, it is characterised in that including processor, heating control module, heating electricity
Road and power module；The power module is connected with the processor and the computer heating control mould respectively, the computer heating control
Module is connected with the heater circuit；
On the outdoor unit during electricity, the processor obtains the environment temperature in the electric-controlled box, in the environment temperature for getting
When degree is less than the first preset temperature, current mode of operation is switched to park mode by the processor；
When environment temperature in the electric-controlled box is less than the second preset temperature, the heating control module control heating electricity
Road is heated, wherein, second preset temperature is more than or equal to first preset temperature.
2. electric-controlled box as claimed in claim 1, it is characterised in that the heating control module includes on-off circuit, negative temperature
Coefficient NTC thermistor and divider resistance；The divider resistance respectively with the NTC thermistor and the power module
Connection；One end of the on-off circuit is connected with the heater circuit, and the other end is connected to the divider resistance and NTC heat
Common port between quick resistance；
When environment temperature in the electric-controlled box is less than the second preset temperature, the voltage of the common port makes the on-off circuit
Conducting, so that the heater circuit is heated.
3. electric-controlled box as claimed in claim 2, it is characterised in that the environment temperature in the electric-controlled box is preset more than the 3rd
During temperature, the voltage of the common port disconnects the on-off circuit, so that the heater circuit stops heating, wherein, institute
The 3rd preset temperature is stated more than second preset temperature.
4. electric-controlled box as claimed in claim 2, it is characterised in that when processor is in park mode, the processor reality
When obtain environment temperature in the electric-controlled box, it is described and when the environment temperature for getting is more than first preset temperature
Current mode of operation is switched to normal mode by processor.
5. electric-controlled box as claimed in claim 2, it is characterised in that the electric-controlled box is also passed including negative temperature coefficient NTC temperature
Sensor, the NTC thermistor is the internal resistance of the NTC temperature sensors.
6. electric-controlled box as claimed in claim 1, it is characterised in that the box body outer wall and inboard wall of cartridge of the electric-controlled box are provided with guarantor
Adiabator.
7. the electric-controlled box as described in any one of claim 1 to 6, it is characterised in that the electric-controlled box is additionally provided with and the switch
The fan of circuit connection.
8. a kind of control method of electric-controlled box, is applied to the outdoor unit of air-conditioning, it is characterised in that the electric-controlled box includes treatment
Device, heating control module, heater circuit and power module, the power module respectively with the processor and the heating control
Molding is connected, and the heating control module is connected with the heater circuit；
The control method of the electric-controlled box is comprised the following steps：
On the outdoor unit during electricity, processor obtains the environment temperature in the electric-controlled box；
When the environment temperature for getting is less than the first preset temperature, current mode of operation is switched to dormancy by the processor
Pattern；
When the environment temperature being under park mode in the electric-controlled box in processor is less than the second preset temperature, the heating control
Molding block controls the heater circuit to be heated, wherein, second preset temperature is more than or equal to the described first default temperature
Degree.
9. the control method of electric-controlled box as claimed in claim 8, it is characterised in that the heating control module control it is described plus
After the step of heater circuit is heated, the control method of the electric-controlled box also includes：
When environment temperature in the electric-controlled box is more than three preset temperatures, the heating control module control heating electricity
Road stops heating, wherein, the 3rd preset temperature is more than second preset temperature.
10. the control method of electric-controlled box as claimed in claim 8 or 9, it is characterised in that the heating control module controls institute
After stating the step of heater circuit is heated, the control method of the electric-controlled box also includes：
When processor is in park mode, the processor obtains the environment temperature in the electric-controlled box in real time；
When the environment temperature for getting is more than first preset temperature, the processor switches to current mode of operation
Normal mode.
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Cited By (1)
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| CN109974133A (en) * | 2019-04-08 | 2019-07-05 | 广东美的暖通设备有限公司 | Air-conditioner outdoor unit and air conditioner |
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Application publication date: 20170531 |