CN106481538B - Compressor protection method, compressor, and air conditioning apparatus - Google Patents
Compressor protection method, compressor, and air conditioning apparatus Download PDFInfo
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- CN106481538B CN106481538B CN201510539865.XA CN201510539865A CN106481538B CN 106481538 B CN106481538 B CN 106481538B CN 201510539865 A CN201510539865 A CN 201510539865A CN 106481538 B CN106481538 B CN 106481538B
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Abstract
A compressor protection method, a compressor, and an air conditioning apparatus are provided. The compressor is provided with a temperature control protection unit, and the method comprises the following steps: sensing characteristic information of the compressor capable of representing the working state of the temperature control protection unit; determining an operating state of the temperature controlled protection unit based on the sensed characteristic information; and when the characteristic information indicates that the temperature control protection unit is in a dangerous working state under the condition of indicating that the temperature of the compressor exceeds a safety value, controlling to close the compressor.
Description
Technical field
Present invention relates in general to air-conditioning technical fields, more specifically, are related to a kind of method for protecting compressor,
The compressor protected using this method includes the air-conditioning equipment of the compressor, and the air-conditioning using above method protection compressor
Equipment.
Background technology
In existing technology, the delivery temperature protection of air-conditioning system senses delivery temperature using thermistor, and logical
It crosses and sets specific temperature protection value to protect compressor not damaged by high-temperature condition.It is protected for air-conditioning system delivery temperature
Thermistor be attached on exhaust outlet of compressor outer wall.However, perception compressor vortex exhaust port temperatures have time delay, especially
It is when refrigerant flow is few.Such as when vortex exhaust port temperatures have exceeded the limit range that is vortexed and can bear, it is possible to
The temperature of the thermistor induction of detection delivery temperature is less than setting value or needs longer time that can just sense vortex
The high temperature that mouth passes over.Delivery temperature guard delay in this way can influence the compressor service life.
It in existing technology, can also be in the following way：In the middle pressure chamber of vortex mouth either noise reduction lid or vortex
Upper installation TOD (Therm-O-Disc, temperature-sensitive dish) quickly perceives the high temperature of compressor, but TOD is a temperature sense
Device is answered, it can sense the high temperature of vortex in time, but need that motor protector is coordinated to realize the high temperature protection of compressor.From
TOD perceives vortex high temperature and is also required to the regular hour to motor protector protection, and such compressor cannot realize high temperature dwell in time
Shield, influences the compressor service life.
Invention content
The present invention is made in view of problem above.
According to the embodiment of the present invention, a kind of method for protecting compressor is provided, the compressor has temperature
Protection location is controlled, the method includes：Sensing can characterize the working condition of the temperature control protection location, described compressor
Characteristic information；The working condition of the temperature control protection location is determined based on the characteristic information of sensing；It is indicated in the characteristic information：
In the case that the working status indication compressor temperature of the temperature control protection location is more than safety value, controlled with described in closing
Compressor.
According to the embodiment of the present invention, a kind of compressor is provided, there is temperature control protection location, the compressor also to wrap
It includes：Sensing device further, the characteristic for sensing compressor that can characterize the working condition of the temperature control protection location, described are believed
Breath；Control device, the working condition for determining the temperature control protection location based on the characteristic information of the sensing device senses,
And indicate the case where working status indication compressor temperature of the temperature control protection location is more than safety value in the characteristic information
Under controlled to close the compressor.
According to the embodiment of the present invention, a kind of air-conditioning equipment is provided, including：Compressor and sensing device further, are used for
Sensing can characterize the characteristic information of the working condition of the temperature control protection location, described compressor；Protective device is used for base
The working condition of the temperature control protection location is determined in the characteristic information of sensing；It is indicated in the characteristic information：The temperature control is protected
The working status indication compressor temperature of unit is protected more than in the case of safety value, is controlled to close the compressor.
According to the embodiment of the present invention, a kind of air-conditioning equipment is provided, including above-mentioned according to embodiment of the present invention
Compressor.
By the technical solution according to embodiment of the present invention, compressor temperature variation can be accurately and rapidly sensed,
And compressor is protected in time.
Description of the drawings
Below with reference to the accompanying drawings illustrate embodiments of the invention, the above of the present invention and its can be more readily understood that
Its objects, features and advantages.Component in attached drawing is not proportional drafting, and is intended merely to show the principle of the present invention.For
Convenient for showing and describe some parts of the invention, corresponding part may be amplified in attached drawing, that is, make it relative in foundation
Other components in the practical exemplary means manufactured of the present invention become much larger.In the accompanying drawings, same or similar technology is special
Sign or component will be indicated using same or similar reference numeral.
Fig. 1 shows a kind of method for protecting compressor according to embodiment of the present invention.
Fig. 2 shows the detailed processes according to embodiment of the present invention constant temperature control protection location working condition really.
Fig. 3 A and Fig. 3 B are shown respectively according to further embodiments of the present invention constant temperature control protection location working condition really
Detailed process.
Fig. 4 shows the detailed process according to a further embodiment of this invention constant temperature control protection location working condition really.
Fig. 5 A show to acquire exhaust port temperatures and current sensor acquisition compressor current using temperature sensor to carry out
The design sketch of judgement.
Fig. 5 B show to acquire compressor current using current sensor when temperature control protection location is located at middle pressure chamber to carry out
The design sketch of judgement.
Fig. 5 C show to acquire using exhaust port pressure sensor acquisition exhaust port pressure and using air entry pressure sensor
Air entry pressure is come the design sketch that is judged.
Fig. 6 shows compressor 600 according to an embodiment of the present invention.
Fig. 7 shows an exemplary configuration of compressor according to an embodiment of the present invention.
Fig. 8 shows air-conditioning equipment according to an embodiment of the present invention.
Fig. 9 shows to can perform the all-purpose computer 900 of each function of the present invention.
Specific implementation mode
Illustrate the embodiment of the present invention with reference to the accompanying drawings.It is retouched in the attached drawing of the present invention or a kind of embodiment
The elements and features stated can be combined with elements and features shown in one or more other attached drawings or embodiment.It answers
When note that for purposes of clarity, being omitted known to unrelated to the invention, those of ordinary skill in the art in attached drawing and explanation
Component and processing expression and description.
Fig. 1 shows a kind of method 100 for protecting compressor according to embodiment of the present invention.Wherein compress equipment
Have temperature control protection location, which for example can be bimetal strip thermostat TOD, can also use can accurately feel
Survey other temperature control protection locations of temperature at vortex.This method 100 includes：Step S110, sensing can characterize the temperature control and protect
Protect the working condition of unit, compressor characteristic information；Step S120 determines that temperature control protection is single based on the characteristic information of sensing
The working condition of member；Step S130 is indicated in the characteristic information：It is super that the temperature control protection location is in instruction compressor temperature
When crossing the dangerous work state of safety value, controlled with close compressor.In the case where temperature control protection location is TOD, this
" the dangerous work state " at place refers to that TOD is opened.If using other temperature control protection locations, working condition can be other
Form.The present invention is unrestricted herein.
Above-mentioned temperature control protection location TOD can be located at compressor vortex.When TOD is opened, exhaust outlet of compressor temperature
It can change, can judge that TOD is in dangerous work state according to the variation.At this point, the characteristic information of above-mentioned compressor
Can be the exhaust port temperatures of temperature sensor sensing.In this case, compressor may include that setting is arranged in compressor
Temperature sensor on gas port outer wall is used to sense the temperature of exhaust outlet of compressor.As shown in Fig. 2, above-mentioned steps S120 can
To include the following steps：Step S121, judges whether the temperature of temperature sensor sensing reaches first threshold；If it is judged that
It is affirmative, then whether flow proceeds to step S122, judge the temperature of temperature sensor sensing in first time period wherein
Inside at least have dropped second threshold；If the judging result of step S122 is affirmative, flow proceeds to step S123, wherein
Judge whether the temperature of temperature sensor sensing at least rises third threshold in the second time period of and then first time period
Value；If the judging result of step S123 is affirmative, flow proceeds to step S124, determines at temperature control protection location wherein
In dangerous work state.
Fig. 5 A show the effect for acquiring exhaust outlet of compressor temperature using temperature sensor to be judged.It is specific at this
In example, the exhaust ports that temperature control protection location TOD is located to vortex carry out the experiment, however the setting position of temperature control protection location
It sets unrestricted in the present invention, other positions such as vortex noise reduction lid of vortex etc. can also be located at according to actual needs.
As shown in Figure 5A, first threshold is set as by 135 degrees Celsius of illustrative temperature value according to compressor temperature characteristic herein.This be because
For according to compressor temperature characteristic, if temperature reaches this value, the compressor injured risk that is out of order increases.Judging temperature
When the temperature of degree sensor sensing reaches this value, into subsequent judgement flow.In the example of Fig. 5 A, first time period is set
It it is 34 seconds, second threshold is set as 6 degrees Celsius, and second time period is 187 seconds, and third threshold value is 5 degrees Celsius.It should be understood that these thresholds
The setting of value is carried out according to R22 compressors, and those skilled in the art can carry out it according to the type of compressor that it is used
He is arranged.By the results show, curve shown in Fig. 5 A is showed in temperature characterisitic, i.e. aforementioned is reached after first threshold again
Decline second threshold in first time period, immediately in second time period and when rising third threshold value, it can be determined that temperature control is protected
Shield unit TOD has been opened, i.e., it is in dangerous work state, and instruction compressor temperature has been more than safety value.Compared to existing skill
Existing method in art, the program can either be accurately detected compressor temperature, and can start rapidly subsequently makes compressor stop
The operation of machine, to which protection compressor is without damage in time.
Other than the working condition above using the variation of temperature to monitor temperature control protection location, exhaust can also be used
The change rate of temperature is monitored, and needs to differentiate to the temperature of monitoring at this time.For example reach first threshold in delivery temperature
When start and judge flow, then from honest become negative value within first time in the derivative of delivery temperature, then and second
Become positive value in time, you can judge that the working status indication compressor temperature of temperature control protection location is more than safety value, to open
The operation of dynamic follow-up protection compressor.
In another embodiment, the characteristic information of compressor can be that the compression of current sensor sensing is electromechanical
Stream.Can include current sensor in compressor, for sensing compressor current.Or use the electric current being arranged in air-conditioning equipment
Sensor acquires the electric current, at this time connects the compressor to the current sensor with call wire so that current sensor can be with
Sense compressor current.Temperature control protection location such as TOD can be located at the exhaust ports of vortex.In this case, such as Fig. 3 A
Shown, step S120 may include：S131, judges whether the electric current of current sensor sensing reaches first threshold；If step
Whether the judging result of S131 is affirmative, then flow proceeds to S132, judge electric current that current sensor senses the wherein
Second threshold is at least had dropped in one period；If the judging result of step S132 is affirmative, flow proceeds to S133,
Wherein judge whether the electric current of current sensor sensing at least increases third threshold value in second time period；Step S133's
In the case that judging result is affirmative, then flow proceeds to S134, determines that temperature control protection location is in dangerous work shape wherein
State.
For above example, Fig. 5 A show the effect for acquiring compressor current using current sensor to be judged
Fruit.It is that compressor current changes with time in the 2nd article of curve of Fig. 5 A.In the example shown in Fig. 5 A, first threshold is
8.58 amperes, first time period is 17 seconds, and second threshold is 0.13 ampere, and second time period is 15 seconds, and third threshold value is 0.1
Ampere.The results show, when electric current shows curve shown in Fig. 5 A, compressor temperature has been more than safety value, and temperature control is protected
Shield unit TOD is also opened.Embodiment through the invention has accurately judged compressor temperature and can relatively rapidly close pressure
Contracting machine.
In another embodiment, the characteristic information of compressor is still the compressor current of current sensor sensing,
However temperature control protection location is located at the middle pressure chamber of vortex.In this case, as shown in Figure 3B, step S120 may include：
S135, judges whether the electric current of the current sensor sensing reaches first threshold；S136 is affirmative in above-mentioned judging result
In the case of, determine that the temperature control protection location is in dangerous work state.At this point, similarly with embodiment before, electric current passes
The current measuring elements such as sensor can be installed to compressor, or in client device such as air-conditioning, can also be attached
To compressor in logic module such as P48 logic modules.
For the embodiment, Fig. 5 B show its experimental result.It can be seen from Fig. 5 B, the first threshold in the present embodiment
It is set as 10 amperes.Electric current when the compressor normal operation is about 25 amperes.When the temperature control protection location ratio for being located at middle pressure chamber
When being opened such as TOD, be vortexed unloading, however compressor is still being run.Compressor current temperature control protection location opening after very
Sensitivity, the amount that can quickly change greatly decline 10 amperes in 1 second as shown in the figure.In such a case, it is possible to judge that temperature control is protected
Shield unit TOD has been opened, and compressor temperature is more than safety value, to which close compressor is protected in time.The above specific electricity
Fluxion value is only a kind of example but unrestricted, depend on used device such as compressor concrete model and parameter not
It accordingly changes together.
In another embodiment, the characteristic information of compressor may include the exhaust of exhaust port pressure sensor sensing
Both the air entry pressure of mouth pressure and air entry pressure sensor sensing.Compressor may include being arranged in compressor air-discharging
Exhaust port pressure sensor near mouthful, the pressure for sensing exhaust outlet of compressor, and be located near compressor air suction mouth
Air entry pressure sensor, the pressure for sensing compressor air suction mouth.In this case, as shown in figure 4, step S120
It may further include：S141, judge exhaust port pressure sensor sensing pressure whether within the first predetermined time extremely
Whether the pressure for declining first threshold and air entry pressure sensor sensing less at least rises within the first predetermined time
Second threshold；In the case where the judging result of step S141 is affirmative, flow proceeds to step S142, determines temperature control wherein
Protection location is in dangerous work state.
It is shown in Fig. 5 C and determines that the working condition of temperature control protection location refers to by exhaust port pressure and air entry pressure
Show that compressor temperature is more than the exemplary plot of safety value.Identical as the foregoing description, each curve graph shown in Fig. 5 C is also to be directed to R22
The experiment that compressor carries out.The diagram is only for being intuitively presented the principle of embodiment of the present invention.Those skilled in the art's needle
Other threshold value settings can be carried out to the compressor of other models.
The foregoing describe compressor characteristics be compressor current, exhaust outlet of compressor temperature, exhaust outlet of compressor pressure and
The case where air entry pressure.The description is merely to illustrate, the application range being not intended to restrict the invention.This field skill
Art personnel, which should be understood that, to characterize whether temperature control protection location is opened using other compressor operating characteristics, in time
Ground close compressor.The compressor characteristics of the working condition of characterization temperature control protection location can also be wirelesslyd receive in above-mentioned flow
Information, then characteristic information carries out follow-up process processing accordingly.It can also be judged using other modes, such as in TOD
Side sets a state sensor or monitor, can detect the opening state of TOD mechanically or through the above way,
Then wireless signal is sent to outside compressor.It is made at this point, operator or unattended machine can respond the wireless signal
Response is to execute the operation for close compressor.
Compressor according to embodiment of the present invention is described below.Fig. 6 shows compression according to an embodiment of the present invention
Machine 600.It can be for example bimetal strip thermostat TOD with temperature control protection location 610, the temperature control protection location 610, also have
There is the device for being able to carry out the above method, can timely and accurately detect the opening of temperature control protection location, to close in time
Compressor is closed to prevent the damage of compressor.The specific configuration of the compressor is described below.As shown in fig. 6, the compressor includes
Sensing device further 620, for sensing characteristic information that can characterize the working condition of temperature control protection location, compressor；Control dress
630 are set, the working condition for determining temperature control protection location based on the characteristic information of sensing device senses, and in characteristic information table
Temperature indicating control protection location is controlled in the case of being in the dangerous work state that instruction compressor temperature is more than safety value to close
Close compressor.It is more than the relationship of safety value and temperature control protection location operation about compressor temperature, and in embodiment of the method before
Similar, details are not described herein.
Sensing device further 620 can be the temperature sensor being located on exhaust outlet of compressor outer wall, and compressor characteristics are believed at this time
Breath can be exhaust outlet of compressor temperature, and control device 630 can execute the flow described above with reference to Fig. 2.In another reality
It applies in mode, sensing device further 620 can be current sensor, current sensor can also be located at the client terminal devices such as air conditioner
In, the existence form of sensing device further 620 is just attached to the conducting wire of set current sensor in air conditioner at this time.In such case
The characteristic information of lower compressor can be the compressor current of current sensor sensing, and more than control device 630 can execute
The flow described with reference to figure 3A and Fig. 3 B.In yet another embodiment, sensing device further 620 may include exhaust port pressure sensor
With air entry pressure sensor, the characteristic information of compressor can be the exhaust port pressure of exhaust port pressure sensor sensing at this time
The air entry pressure sensed with air entry pressure sensor, and control device 630 can execute the stream described above with reference to Fig. 4
Journey.The compressor of embodiment disclosed above, cost is relatively low, is easy to apply, and can in time be closed when temperature is more than safety value
It closes.
Control device 630 can also include radio receiver, for wirelessly receiving characterization temperature control protection location
Working condition, the characteristic information of compressor.
Fig. 7 shows an exemplary configuration of the compressor.For clarity, control device therein amplification is shown
Outside compressor.It can be appreciated that (example is for sensing device further (example is temperature sensor in figure), temperature control protection location from Fig. 7
TOD), each position relationship of compressor exhaust pipe, air entry.This Fig. 7 is only example.It will be understood by those skilled in the art that
In the principle of the present invention, various arrangements can be used, which can be used the operation principle of the present invention.
According to embodiment of the present invention, a kind of air-conditioning equipment is also provided.Include shown in Fig. 6 or Fig. 7 in the air-conditioning equipment
Compressor.Alternatively, as shown in figure 8, air-conditioning equipment 800 may include common compressor 810 in the prior art, however it is also
Including sensing device further 820 and protective device 830, it is single that the sensing device further 820 sensing can characterize the temperature control protection being located at vortex
The characteristic information of the working condition of member, described compressor, protective device 830 are used for the side by being described above with reference to Fig. 2-5
Method protects compressor.The air-conditioning equipment 800 can also include a wireless communication device, in sensing device further 820 and protection
The characteristic information of above-mentioned compressor is transmitted between device 830.
It should be emphasized that term "comprises/comprising" refers to the presence of feature, element, step or component when being used herein, but simultaneously
It is not excluded for the presence or additional of one or more other features, element, step or component.It is related to the term " first " of ordinal number,
" second " etc. is not offered as the implementation sequence or importance degree of feature, element, step or component defined by these terms,
And it is used between these features, element, step or component be identified for the sake of just for the sake of description understanding.When in difference
When using the same statement such as " first threshold " in embodiment, be not offered as it is relevant between these statements, and merely to giving
Signature identification is given to describe to understand scheme.
It is described in detail by block diagram, flow chart and/or embodiment above, illustrates implementation according to the present invention
The method of example and/or the different embodiments of device.When these block diagrams, flow chart and/or embodiment include one or more work(
Can and/or when operation, it will be obvious to those skilled in the art that each function in these block diagrams, flow chart and/or embodiment and/or
Operation can by various hardware, software, firmware or substantially their arbitrary combination by individually and/or jointly implement.
In one embodiment, several parts of theme described in this specification can by application-specific IC (ASIC),
Field programmable gate array (FPGA), digital signal processor (DSP) or other integrated forms are realized.However, the skill of this field
Art personnel are, it will be recognized that some aspects of embodiment described in this specification can entirely or partly in integrated circuits
(for example, in terms of in one or more in the form of the one or more computer programs run on one or more computers
The form of the one or more computer programs run in calculation machine system), with run on the one or more processors one
Or multiple programs form (for example, in the form of the one or more programs run in one or more microprocessors), with
The form of firmware is equally implemented in the form of substantially they arbitrarily combine, also, according to the disclosure in this specification
Content, designed for the disclosure circuit and/or to write for the software of the disclosure and/or the code of firmware be entirely in ability
Within the limit of power of field technique personnel.
For example, each step of flow chart shown in above-mentioned Fig. 2-5 can be by software, firmware, hardware or it is arbitrary
The mode of combination executes.It, can be from storage medium or network to special hard by software or firmware realization
Computer (such as all-purpose computer 900 shown in Fig. 9) installation of part structure constitutes the program of the software, which is installing
When there are various programs, it is able to carry out various functions.
Fig. 9 is to show to can be used as realizing that the information processing of compressor protection method according to the ... of the embodiment of the present invention is set
The structure diagram of standby general-purpose computing system.Computer system 900 is an example, does not imply that the method to the present invention
With the use scope of device or the limitation of function.Also computer system 900 should not be construed to Exemplary operating system 900
Shown in any component or combinations thereof have and rely on or demand.
In fig.9, central processing unit (CPU) 901 is according to the program stored in read-only memory (ROM) 902 or from depositing
The program that storage part 908 is loaded into random access memory (RAM) 903 executes various processing.In RAM 903, also according to need
Store the data required when CPU 901 executes various processing etc..CPU 901, ROM 902 and RAM 903 are via bus
904 are connected to each other.Input/output interface 905 is also connected to bus 904.
Components described below is also connected to input/output interface 905：Importation 906 (including keyboard, mouse etc.), output
Part 907 (including display, such as cathode-ray tube (CRT), liquid crystal display (LCD) etc. and loud speaker etc.), storage section
908 (including hard disks etc.), communications portion 909 (including network interface card is such as LAN card, modem).Communications portion 909
Communication process is executed via network such as internet.As needed, driver 99 can be connected to input/output interface 905.It can
Dismounting medium 911 such as disk, CD, magneto-optic disk, semiconductor memory etc. can be installed in driver 910 as needed
On so that the computer program read out can be as needed mounted in storage section 908.
It, can be from network such as internet or from storage medium example in the case of series of processes above-mentioned by software realization
As detachable media 911 installs the program of composition software.
It will be understood by those of skill in the art that this storage medium be not limited to it is shown in Fig. 8 wherein have program stored therein,
Separately distribute with equipment to provide a user the detachable media 911 of program.The example of detachable media 911 includes disk
(including floppy disk), CD (comprising compact disc read-only memory (CD-ROM) and digital versatile disc (DVD)), magneto-optic disk are (comprising mini
Disk (MD) (registered trademark)) and semiconductor memory.Alternatively, storage medium can be in ROM 902, storage section 908 includes
Hard disk etc., wherein computer program stored, and user is distributed to together with the equipment comprising them.
Therefore, the invention also provides a kind of program products for the instruction code being stored with machine-readable.Described instruction
When code is read and executed by machine, above-mentioned image processing method according to the ... of the embodiment of the present invention can perform.Correspondingly, for holding
The various storage mediums that the upper surface of this program product is enumerated are carried to be also included in disclosure of the invention.
In the feature above in the description of the specific embodiment of the invention, describing and/or showing for a kind of embodiment
It can be used in one or more other embodiments in a manner of same or similar, with the feature in other embodiment
It is combined, or substitute the feature in other embodiment.
In addition, the method for various embodiments of the present invention be not limited to specifications described in or it is shown in the accompanying drawings when
Between sequentially execute, can also be according to other time sequencings, concurrently or independently execute.Therefore, described in this specification
Method execution sequence not to the present invention technical scope be construed as limiting.
Claims (9)
1. a method of for protecting compressor, the compressor that there is temperature control protection location, the method includes：
Sensing can characterize the characteristic information of the working condition of the temperature control protection location, described compressor；
The working condition of the temperature control protection location is determined based on the characteristic information of sensing；
Indicate that the temperature control protection location is in the case that instruction compressor temperature is more than safety value in the characteristic information
When dangerous work state, controlled to close the compressor,
Wherein, the temperature control protection location is located at vortex, the characteristic information of the sensing compressor includes by being located at
Temperature sensor on the exhaust outlet outer wall of the compressor senses exhaust port temperatures, determines the work of the temperature control protection location
State includes：Judge whether the temperature of the temperature sensor sensing reaches first threshold；It is affirmative in above-mentioned judging result
In the case of, judge whether the temperature of the temperature sensor sensing at least has dropped second threshold in first time period；Sentencing
Break in the case of at least to have dropped second threshold in first time period, judges the temperature of the temperature sensor sensing tight
Then whether third threshold value is at least risen in the second time period of first time period；And judging in second time period
In the case of at least rising third threshold value, determine that the temperature control protection location is in dangerous work state, or
Wherein, the temperature control protection location is located to the exhaust ports of vortex, and the characteristic information packet of the sensing compressor
The electric current that compressor is sensed by current sensor is included, wherein determining that the working condition of the temperature control protection location includes：Judge
Whether the electric current of the current sensor sensing reaches first threshold；In the case where above-mentioned judging result is affirmative, institute is judged
Whether the electric current for stating current sensor sensing at least has dropped second threshold in first time period；Judging at the first time
In the case of at least having dropped second threshold in section, judge the electric current of the current sensor sensing in and then first time period
Second time period in whether at least rise third threshold value；And judging at least to rise third in second time period
In the case of threshold value, determine that the temperature control protection location is in dangerous work state, or
Wherein, the temperature control protection location is located at the middle pressure chamber of vortex, and the characteristic information of the sensing compressor includes
The electric current of compressor is sensed by current sensor, wherein determining that the working condition of the temperature control protection location includes：Judge institute
Whether the electric current for stating current sensor sensing reaches first threshold；And it in the case where above-mentioned judging result is affirmative, determines
The temperature control protection location is in dangerous work state, or
Wherein, the characteristic information of the sensing compressor includes sensing exhaust outlet by the exhaust port pressure sensor of compressor
Pressure and both air entry pressure is sensed by the air entry pressure sensor of compressor, wherein determining that the temperature control protection is single
Member working condition include：Judge the exhaust port pressure of the exhaust port pressure sensor sensing whether within the first predetermined time
Whether decline at least first threshold and the air entry pressure of air entry pressure sensor sensing are within the first predetermined time
Rise at least second threshold；And in the case where above-mentioned judging result is affirmative, determine that the temperature control protection location is in danger
Dangerous working condition.
2. according to the method described in claim 1, the wherein described temperature control protection location is bimetal strip thermostat TOD.
3. a kind of compressor, with temperature control protection location, the compressor further includes：
Sensing device further, the characteristic for sensing compressor that can characterize the working condition of the temperature control protection location, described are believed
Breath；And
Control device, the work shape for determining the temperature control protection location based on the characteristic information of the sensing device senses
State, and indicate that the temperature control protection location is in the dangerous work that instruction compressor temperature is more than safety value in the characteristic information
It is controlled in the case of state to close the compressor,
The temperature control protection location is located at vortex, and the sensing device further is located on the exhaust outlet outer wall of the compressor
Temperature sensor, and the characteristic information of the compressor is the exhaust port temperatures of the temperature sensor sensing, wherein the control
Device processed is used for：Judge whether the temperature of the temperature sensor sensing reaches first threshold；It is affirmative in above-mentioned judging result
In the case of, judge whether the temperature of the temperature sensor sensing at least has dropped second threshold in first time period；
In the case of judging at least to have dropped second threshold in first time period, judge that the temperature of the temperature sensor sensing exists
And then whether third threshold value is at least risen in the second time period after first time period；Judging in second time period
In the case of inside at least rising third threshold value, determine that the temperature control protection location is in dangerous work state, or
The temperature control protection location is located at the exhaust ports of vortex, and the sensing device further is current sensing means, and the compression
The characteristic information of machine is the electric current of the compressor of the current sensing means detection, wherein the control device is used for：Judge institute
Whether the electric current for stating current sensing means detection reaches first threshold；In the case where above-mentioned judging result is affirmative, institute is judged
Whether the electric current for stating current sensing means detection at least has dropped second threshold in first time period；When judging first
Between at least have dropped second threshold in section in the case of, judge the electric current of the current sensing means detection at and then first
Between whether at least rise third threshold value in second time period after section；Judging at least to rise in second time period
In the case of third threshold value, determine that the temperature control protection location is in dangerous work state, or
The temperature control protection location is located at the middle pressure chamber of vortex, and the sensing device further is current sensing means, and the compression
The characteristic information of machine is the electric current of the compressor of the current sensing means detection, wherein the control device is used for：Judge institute
Whether the electric current for stating current sensing means detection reaches first threshold；In the case where above-mentioned judging result is affirmative, institute is determined
It states temperature control protection location and is in dangerous work state, or
The sensing device further includes the exhaust port pressure sensor being located near the exhaust outlet of compressor and the suction for being located at compressor
Air entry pressure sensor near gas port, and the characteristic information of the compressor is the exhaust of exhaust port pressure sensor sensing
Both the air entry pressure of mouth pressure and air entry pressure sensor sensing, wherein the control device is used for：Described in judgement
Whether the exhaust port pressure of exhaust port pressure sensor sensing at least declines first threshold and described within the first predetermined time
Whether the air entry pressure of air entry pressure sensor sensing within the first predetermined time at least rises second threshold；Sentence above-mentioned
In the case that disconnected result is affirmative, judge that the temperature control protection location is in dangerous work state.
4. compressor according to claim 3, wherein the temperature control protection location is bimetal strip thermostat TOD.
5. compressor according to claim 3 further includes radio receiver, for wirelessly receiving described in characterization
The characteristic information of the working condition of temperature control protection location, described compressor.
6. a kind of air-conditioning equipment, including：
Compressor, and
Sensing device further, for sensing compressor that can characterize the working condition for the temperature control protection location being located at vortex, described
Characteristic information；
Protective device, the working condition for determining the temperature control protection location based on the characteristic information of sensing；In the characteristic
Information indicates：The working condition of the temperature control protection location is in the dangerous work state that instruction compressor temperature is more than safety value
In the case of, it is controlled to close the compressor,
Wherein, the sensing device further is the temperature sensor being located on the exhaust outlet outer wall of the compressor, and the compressor
Characteristic information be temperature sensor sensing exhaust port temperatures, wherein
The protective device is used for：Judge whether the temperature of the temperature sensor sensing reaches first threshold；In above-mentioned judgement
As a result in the case of being affirmative, judge whether the temperature of temperature sensor sensing at least has dropped the in first time period
Two threshold values；In the case where judging at least to have dropped second threshold in first time period, the temperature sensor sense is judged
Whether the temperature of survey at least rises third threshold value in the second time period after and then first time period；Judging
In the case of at least rising third threshold value in second time period, determine that the temperature control protection location is in dangerous work state.
7. air-conditioning equipment according to claim 6, wherein the temperature control protection location is bimetal strip thermostat TOD.
8. air-conditioning equipment according to claim 6 further includes wireless communication device, in sensing device further and protective device
Between transmit the characteristic information of the compressor.
9. a kind of air-conditioning equipment includes the compressor according to any one of claim 3-5.
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| CN106762586B (en) * | 2017-01-03 | 2018-03-20 | 安徽美芝制冷设备有限公司 | Overtemperature protection control circuit, frequency-changeable compressor system and the refrigerator of frequency-changeable compressor |
| CN110500711B (en) * | 2019-08-13 | 2023-09-08 | 珠海格力电器股份有限公司 | Temperature limiting protection control method, device and system |
| CN110422189B (en) * | 2019-08-27 | 2020-05-12 | 石家庄国祥运输设备有限公司 | Online prediction method for compressor fault in air conditioning unit of railway vehicle |
| CN114688007A (en) * | 2022-03-23 | 2022-07-01 | 浙江宜格企业管理集团有限公司 | Cosmetic instrument air compressor overheating protection control method, system and equipment |
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