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 PDF

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Publication number
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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China
Prior art keywords
temperature
interval
heating module
difference
control system
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Granted
Application number
CN201810654010.5A
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CN108693898B (en
Inventor
刘华
黄伟
尹剑波
贺小林
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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Priority to CN201810654010.5A priority Critical patent/CN108693898B/en
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    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05DSYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00Control of temperature
    • G05D23/19Control of temperature characterised by the use of electric means
    • G05D23/1927Control of temperature characterised by the use of electric means using a plurality of sensors
    • G05D23/193Control 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
    • G05D23/1931Control 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
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70Efficient 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

A kind of two-way temperature control system, method and air-conditioning equipment
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.
CN201810654010.5A 2018-06-22 2018-06-22 Double-path temperature control system and method and air conditioning equipment Active CN108693898B (en)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5266778A (en) * 1992-05-29 1993-11-30 Hollister, Inc. Dynamic temperature control for use with a heating and/or cooling system including at least one temperature sensor
US20090210190A1 (en) * 2008-02-19 2009-08-20 International Business Machine Corporation Heat sink method, system, and program product
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
JP2010056116A (en) * 2008-08-26 2010-03-11 Kiko Kagi Kofun Yugenkoshi Heat sink test method
KR20130132073A (en) * 2012-05-25 2013-12-04 (주)씨엔에스 Reactor temperature control apparatus
US20150338289A1 (en) * 2014-05-23 2015-11-26 SIKA Dr. Siebert & Kühn GmbH & Co. KG Method and apparatus for controlling the temperature of a calibration volume of a device for comparative calibration of temperature sensors
US20160356655A1 (en) * 2015-06-08 2016-12-08 Renesas Electronics Corporation Semiconductor integrated circuit device and electronics device
CN208537996U (en) * 2018-06-22 2019-02-22 珠海格力电器股份有限公司 A kind of two-way temperature control system and air-conditioning equipment

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5266778A (en) * 1992-05-29 1993-11-30 Hollister, Inc. Dynamic temperature control for use with a heating and/or cooling system including at least one temperature sensor
US20090210190A1 (en) * 2008-02-19 2009-08-20 International Business Machine Corporation Heat sink method, system, and program product
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
JP2010056116A (en) * 2008-08-26 2010-03-11 Kiko Kagi Kofun Yugenkoshi Heat sink test method
KR20130132073A (en) * 2012-05-25 2013-12-04 (주)씨엔에스 Reactor temperature control apparatus
US20150338289A1 (en) * 2014-05-23 2015-11-26 SIKA Dr. Siebert & Kühn GmbH & Co. KG Method and apparatus for controlling the temperature of a calibration volume of a device for comparative calibration of temperature sensors
US20160356655A1 (en) * 2015-06-08 2016-12-08 Renesas Electronics Corporation Semiconductor integrated circuit device and electronics device
CN208537996U (en) * 2018-06-22 2019-02-22 珠海格力电器股份有限公司 A kind of two-way temperature control system and air-conditioning equipment

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