CN108693898A - A kind of two-way temperature control system, method and air-conditioning equipment - Google Patents
A kind of two-way temperature control system, method and air-conditioning equipment Download PDFInfo
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- CN108693898A CN108693898A CN201810654010.5A CN201810654010A CN108693898A CN 108693898 A CN108693898 A CN 108693898A CN 201810654010 A CN201810654010 A CN 201810654010A CN 108693898 A CN108693898 A CN 108693898A
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- Prior art keywords
- temperature
- interval
- heating module
- difference
- control system
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Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/1927—Control of temperature characterised by the use of electric means using a plurality of sensors
- G05D23/193—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces
- G05D23/1931—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces to control the temperature of one space
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The present invention discloses a kind of two-way temperature control system, method and air-conditioning equipment.Wherein, which includes:First temperature detector is arranged on a heat sink, the first temperature for acquiring the radiator;Wherein, the radiator is close to heating module;Second temperature detector is built in the heating module, the second temperature for acquiring the heating module;Chip is controlled, is connect with first temperature detector and second temperature detector, first temperature and the second temperature are used for, is run according to comparison result control system.Through the invention, temperature sampling precision is improved, controller reliability of operation is enhanced.The real time temperature for leading to control chip erroneous judgement inside modules because heating module temperature detection is inaccurate is avoided the occurrence of, device service life is influenced and even burns.
Description
Technical field
The present invention relates to machine set technology fields, in particular to a kind of two-way temperature control system, method and air-conditioning equipment.
Background technology
The heating module temperature detection method of air-conditioning system is mainly at this stage:It is exported by heating device embedded with temperature-sensing device
Analog voltage.Fig. 1 is the temperature checking method schematic diagram according to the relevant technologies, as shown in Figure 1, component temperature detection circuit detects
Then the temperature of heating module controls chip and carries out abnormal determination and PWM modulation, output to driving circuit, the fortune of control system
Row.The limitation of existing temperature detection scheme essentially consists in:(1) temperature simulation sampled voltage is by external interference;(2) internal temperature-sensitive
Device can not reflect the true temperature of IGBT pipes far from pyrotoxin.
For the problem that heating module temperature detection in the prior art is not accurate enough, effective solution side is not yet proposed at present
Case.
Invention content
A kind of two-way temperature control system, method and air-conditioning equipment are provided in the embodiment of the present invention, to solve to send out in the prior art
The not accurate enough problem of thermal modules temperature detection.
In order to solve the above technical problems, the present invention provides a kind of two-way temperature control systems, wherein the system includes:First
Temperature detector is arranged on a heat sink, the first temperature for acquiring the radiator;Wherein, the radiator is close to the mould that generates heat
Block;Second temperature detector is built in the heating module, the second temperature for acquiring the heating module;Chip is controlled, with
First temperature detector is connected with second temperature detector, be used for first temperature and the second temperature, according to than
Compared with output control system operation.
Further, the control chip includes:Abnormal determination module is used for first temperature and described second
Temperature generates comparison result;PWM modulation module, for generating corresponding control information according to the comparison result.
Further, the system also includes:Driving circuit, the control information for receiving the control chip, according to
The operation of system described in the control instruction respective drive.
Further, the control chip is specifically used for judging whether first temperature and the second temperature are small
In predetermined threshold value;If it is not, then the control information that output system is shut down, and export the excessively high prompt message of heating module temperature;
If it is, the difference for calculating first temperature and the second temperature maintains if the difference is in first interval
Current operation, without PWM modulation, if the difference is in second interval, output adjustment PWM is to reduce system operation frequency
The control information of rate if the difference is in 3rd interval, the control information that output system is shut down, and exports radiator peace
Fill the prompt message of failure;Wherein, the minimum of the peak of the first interval≤second interval, the second interval
Peak≤3rd interval minimum.
Further, first temperature detector is radiator temperature detection circuit, and second temperature detector is component temperature
Detection circuit.
Further, the second temperature of the heating module is the output temperature of insulated gate bipolar transistor IGBT.
The present invention also provides a kind of two-way temperature control method, it is applied to power two-way temperature control system, wherein this method includes:
Acquire the second temperature of the first temperature and heating module of radiator;Wherein, the radiator is close to the heating module;Compare
First temperature and the second temperature are run according to comparison result control system.
Further, the first temperature of radiator and the second temperature of heating module are acquired, including:Pass through the first temperature detector
Acquire the first temperature of the radiator;Wherein, first temperature detector is arranged on the radiator;And pass through second
Temperature detector acquires the second temperature of the heating module;Wherein, second temperature detector is built in the heating module.
Further, first temperature and the second temperature are run according to comparison result control system, packet
It includes:Judge whether first temperature and the second temperature are respectively less than predetermined threshold value, if it is not, then control system is shut down, and
Export the excessively high prompt message of heating module temperature;If it is, the difference of first temperature and the second temperature is calculated,
According to the corresponding control system operation of the difference.
Further, the difference for calculating first temperature and the second temperature, accordingly controls according to the difference and is
System operation, including:If the difference is in first interval, current operation is maintained, without PWM modulation;If the difference
Value is in second interval, then adjusts PWM to reduce the running frequency of system;If the difference is in 3rd interval, control
System-down, and export the prompt message of radiator installation failure;Wherein, the peak of the first interval≤secondth area
Between minimum, the minimum of peak≤3rd interval of the second interval.
The present invention also provides a kind of air-conditioning equipments, wherein the air-conditioning equipment includes two-way temperature control system.
Apply the technical scheme of the present invention, by acquire heating module inside output temperature and outside pyrotoxin
Heatsink temperature, calculating is compared in real time.Temperature sampling precision is improved, controller reliability of operation is enhanced.It avoids
There is the real time temperature for causing to control chip erroneous judgement inside modules because heating module temperature detection is inaccurate, influences device use
Service life even burns.
Description of the drawings
Fig. 1 is the temperature checking method schematic diagram according to the relevant technologies;
Fig. 2 is a kind of hardware architecture diagram of two-way temperature control system according to the ... of the embodiment of the present invention;
Fig. 3 is temperature acquisition material object schematic diagram according to the ... of the embodiment of the present invention;
Fig. 4 is the flow chart of two-way temperature control method according to the ... of the embodiment of the present invention.
Specific implementation mode
Present invention is further described in detail in the following with reference to the drawings and specific embodiments, it should be understood that described herein
Specific embodiment be only used to explain the present invention, be not intended to limit the present invention.
In subsequent description, using for indicating that the suffix of such as " module ", " component " or " unit " of element is only
The explanation for being conducive to the present invention, itself does not have a specific meaning.Therefore, " module ", " component " or " unit " can mix
Ground uses.
Embodiment one
The present invention provides a kind of two-way temperature control systems, on the basis of prior art, tight with IGBT pyrotoxins
At the radiator of closely connected conjunction, a temperature detector (or temperature-sensitive head) is increased.By collecting temperature at radiator and IGBT
(Insulated Gate Bipolar Transistor, insulated gate bipolar transistor) output temperature carries out calculating comparison, sentences
Disconnected temperature conditions, to carry out PWM modulation (pulse width modulation) or stoppage protection.
Referring to Fig. 2, a kind of hardware architecture diagram of its two-way temperature control system of each embodiment to realize the present invention,
The two-way temperature control system may include:The components such as the first temperature detector, the second temperature detector and control chip.People in the art
Member is not it is appreciated that the structure of two-way temperature control system shown in Figure 2 constitutes the restriction to two-way temperature control system, two-way temperature control
System may include either combining certain components or different components arrangement than illustrating more or fewer components.
The all parts of two-way temperature control system are specifically introduced with reference to Fig. 2:
First temperature detector is arranged on a heat sink, the first temperature for acquiring radiator;Wherein, radiator is close to send out
Thermal modules;
Second temperature detector, is built in heating module, the second temperature for acquiring heating module;
Chip is controlled, is connect with the first temperature detector and the second temperature detector, for comparing the first temperature and second temperature, according to
Comparison result control system is run.
Control chip in the present embodiment may include:Abnormal determination module, for comparing the first temperature and second temperature,
Generate comparison result;PWM modulation module, for generating corresponding control information according to comparison result.
Two-way temperature control system in the present embodiment can also include:Driving circuit, the control letter for receiving control chip
Breath, according to the operation of control instruction respective drive system.
Fig. 3 is temperature acquisition material object schematic diagram according to the ... of the embodiment of the present invention, as shown in figure 3, cooling fin and heating module
Fit closely, temperature detector is embedded in cooling fin, when system operation, with the different operating statuses of device, temperature also with
Variation.Temperature detector can collect the real time temperature for the pyrotoxin for being close to module, and module embedded with temperature-sensing device exports near pyrotoxin
Real time temperature.Real-time contrast conting is carried out to both the above temperature, to improve temperature sampling precision, enhancing controller operation
Reliability.
How first temperature and second temperature are compared for control chip, is run according to comparison result control system, this reality
It applies example and provides a kind of preferred embodiment, that is, control chip, be specifically used for judging whether the first temperature and second temperature are small
In predetermined threshold value, if it is not, then the control information that output system is shut down, and export the excessively high prompt message of heating module temperature;
If it is, calculating the difference of the first temperature and second temperature, if difference is in first interval, current operation is maintained, no
PWM modulation is carried out, if difference is in second interval, output adjustment PWM is to reduce the control information of system operation frequency, such as
Fruit difference is in 3rd interval, then the control information that output system is shut down, and exports the prompt message of radiator installation failure;Its
In, the minimum of peak≤second interval of first interval, the minimum of peak≤3rd interval of second interval.It is based on
This, can improve accuracy of temperature control in conjunction with the temperature and module temperature of pyrotoxin, the operation of corresponding control system.
Can any can produce it should be noted that the heating module in the present embodiment refers to the module for having pyrotoxin
The module of heat amount realizes two-way temperature control as long as the module that can be generated heat, can apply the technical scheme of the present invention.This
The first temperature detector in embodiment can be radiator temperature detection circuit, and the second temperature detector can be component temperature detection electricity
Road.The second temperature of heating module is the output temperature of insulated gate bipolar transistor IGBT, very close to pyrotoxin, to carry
The precision of high-temperature detection.
Embodiment two
The two-way temperature control system of above-described embodiment introduction can be embodied by following two-way temperature control method.
Fig. 4 is the flow chart of two-way temperature control method according to the ... of the embodiment of the present invention, as shown in figure 4, this method includes following
Step:
Step S401 acquires the first temperature of radiator and the second temperature of heating module;Wherein, radiator is close to generate heat
Module;Specifically, the first temperature of radiator can be acquired by the first temperature detector;Wherein, the first temperature detector setting is being radiated
On device;And the second temperature of heating module is acquired by the second temperature detector;Wherein, the second temperature detector is built in heating module
In.
Step S402 compares the first temperature and second temperature, is run according to comparison result control system.Specifically, judge
Whether the first temperature and second temperature are respectively less than predetermined threshold value, if it is not, then control system is shut down, can also further export hair
The excessively high prompt message of hot-die deblocking temperature;If it is, calculating the difference of the first temperature and second temperature, accordingly controlled according to difference
System operation processed.
The present embodiment by acquire heating module inside output temperature and the heatsink temperature outside pyrotoxin,
Calculating is compared in real time.Temperature sampling precision is improved, controller reliability of operation is enhanced.It avoids the occurrence of because of heating module
Temperature detection is inaccurate, leads to the real time temperature for controlling chip erroneous judgement inside modules, influences device service life and even burn.
In the present embodiment, the difference for calculating the first temperature and second temperature is run, tool according to the corresponding control system of difference
Body can be realized by following preferred embodiment:If difference is in first interval, current operation is maintained, without PWM
Modulation;If difference is in second interval, PWM is adjusted to reduce the running frequency of system;If difference is in 3rd interval,
Then control system is shut down, and can also further export the prompt message of radiator installation failure;Wherein, the peak of first interval
The minimum of≤second interval, the minimum of peak≤3rd interval of second interval.
Specifically, the acquisition of the first temperature detector close to the radiator of pyrotoxin real time temperature, by temperature value meter T1, second
Temperature detector acquires the real time temperature near the pyrotoxin of heating module embedded with temperature-sensing device output, by temperature value meter T2.
For example, control chip is calculated according to the two-way temperature data of return:As 100 DEG C of T1 <, when 100 DEG C of T2 <,
If 0 < T1-T2 < 5 (DEG C), control chip does not make PWM modulation;As 100 DEG C of T1 <, when 100 DEG C of T2 <, if 5≤T1-T2≤10
(DEG C), control chip reduces the frequency of machine operation by adjusting PWM, to reduce temperature;As 100 DEG C of T1 <, 100 DEG C of T2 <
When, if T1-T2 > 10 (DEG C), system-down, and export radiator installation fault cues by controlling chip.When T1 >=100 DEG C
Or when T2 >=100 DEG C, system-down, and by controlling the excessively high prompt of chip output module temperature.
For example, control chip is calculated according to the two-way temperature data of return:As 100 DEG C of T1 <, when 100 DEG C of T2 <,
If 0 < T2-T1 < 5 (DEG C), control chip does not make PWM modulation;As 100 DEG C of T1 <, when 100 DEG C of T2 <, if 5≤T2-T1≤10
(DEG C), control chip reduces the frequency of machine operation by adjusting PWM, to reduce temperature;As 100 DEG C of T1 <, 100 DEG C of T2 <
When, if T2-T1 > 10 (DEG C), system-down, and export radiator installation fault cues by controlling chip.When T1 >=100 DEG C
Or when T2 >=100 DEG C, system-down, and by controlling the excessively high prompt of chip output module temperature.
The present invention also provides a kind of air-conditioning equipments, including the two-way temperature control system that above-described embodiment one is introduced, realization pair
The temperature actuated of its affiliated air-conditioning equipment.Front is described in detail two-way temperature control system, and details are not described herein again.
From the above description it is found that the present invention improves temperature sampling precision, enhance controller reliability of operation.It keeps away
Exempt from the real time temperature for occurring causing to control chip erroneous judgement inside modules because heating module temperature detection is inaccurate, influencing device makes
It is even burnt with the service life.
It should be noted that herein, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that process, method, article or device including a series of elements include not only those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including this
There is also other identical elements in the process of element, method, article or device.
The embodiments of the present invention are for illustration only, can not represent the quality of embodiment.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on this understanding, technical scheme of the present invention substantially in other words does the prior art
Going out the part of contribution can be expressed in the form of software products, which is stored in a storage medium
In (such as ROM/RAM, magnetic disc, CD), including some instructions are used so that a mobile terminal (can be mobile phone, computer, clothes
Be engaged in device, air conditioner or the network equipment etc.) execute method described in each embodiment of the present invention.
The embodiment of the present invention is described above in conjunction with figure, but the invention is not limited in above-mentioned specific realities
Mode is applied, the above mentioned embodiment is only schematical, rather than restrictive, and those skilled in the art exist
Under the enlightenment of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, many shapes can be also made
Formula, all of these belong to the protection of the present invention.
Claims (11)
1. a kind of two-way temperature control system, which is characterized in that the system comprises:
First temperature detector is arranged on a heat sink, the first temperature for acquiring the radiator;Wherein, the radiator is tight
Paste heating module;
Second temperature detector is built in the heating module, the second temperature for acquiring the heating module;
Chip is controlled, connect with first temperature detector and second temperature detector, first temperature and described is used for
Second temperature is run according to comparison result control system.
2. system according to claim 1, which is characterized in that the control chip includes:
Abnormal determination module is used for first temperature and the second temperature, generates comparison result;
PWM modulation module, for generating corresponding control information according to the comparison result.
3. system according to claim 1, which is characterized in that the system also includes:
Driving circuit, the control information for receiving the control chip, according to system described in the control instruction respective drive
Operation.
4. system according to claim 1, which is characterized in that
The control chip is specifically used for judging whether first temperature and the second temperature are respectively less than predetermined threshold value;
If it is not, then the control information that output system is shut down, and export the excessively high prompt message of heating module temperature;
If it is, the difference of first temperature and the second temperature is calculated, if the difference is in first interval,
Current operation is maintained, without PWM modulation, if the difference is in second interval, output adjustment PWM is to reduce system fortune
The control information of line frequency if the difference is in 3rd interval, the control information that output system is shut down, and exports heat dissipation
Device installs the prompt message of failure;Wherein, the minimum of the peak of the first interval≤second interval, described second
The minimum of the peak in section≤3rd interval.
5. system according to claim 1, which is characterized in that
First temperature detector is radiator temperature detection circuit, and second temperature detector is component temperature detection circuit.
6. system according to claim 1, which is characterized in that the second temperature of the heating module is insulated gate bipolar
The output temperature of transistor IGBT.
7. a kind of two-way temperature control method, is applied to two-way temperature control system according to any one of claims 1 to 6, feature exists
In, the method includes:
Acquire the second temperature of the first temperature and heating module of radiator;Wherein, the radiator is close to the heating module;
Compare first temperature and the second temperature, is run according to comparison result control system.
8. the method according to the description of claim 7 is characterized in that acquisition radiator the first temperature and heating module second
Temperature, including:
The first temperature of the radiator is acquired by the first temperature detector;Wherein, first temperature detector is arranged in the heat dissipation
On device;And
The second temperature of the heating module is acquired by the second temperature detector;Wherein, second temperature detector is built in the hair
In thermal modules.
9. the method according to the description of claim 7 is characterized in that first temperature and the second temperature, according to
Comparison result control system is run, including:
Judge whether first temperature and the second temperature are respectively less than predetermined threshold value,
If it is not, then control system is shut down, and export the excessively high prompt message of heating module temperature;
If it is, calculating the difference of first temperature and the second temperature, transported according to the corresponding control system of the difference
Row.
10. according to the method described in claim 9, it is characterized in that, calculating the difference of first temperature and the second temperature
Value is run according to the corresponding control system of the difference, including:
If the difference is in first interval, current operation is maintained, without PWM modulation;
If the difference is in second interval, PWM is adjusted to reduce the running frequency of system;
If the difference is in 3rd interval, control system is shut down, and exports the prompt message of radiator installation failure;Its
In, the minimum of peak≤second interval of the first interval, peak≤third of the second interval
The minimum in section.
11. a kind of air-conditioning equipment, spy/sign is, the air-conditioning equipment includes according to any one of claims 1 to 6 double
Road temperature control system.
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WO2009150725A1 (en) * | 2008-06-11 | 2009-12-17 | 崔 炳奎 | Method for controlling electron heat exchanging element, control device, heat exchanging module, and water cleaner using module |
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