阅读说明：本技术 一种空调器及其控制方法 (A kind of air conditioner and its control method ) 是由 杨明登 左泽明 李海利 田涛 张中强 程业春 于 2019-09-10 设计创作，主要内容包括：本发明涉及空调技术领域,公开了一种空调器及其控制方法。空调器的控制方法包括：判断内风机是否出现第一异常；当内风机出现第一异常时,暂时关闭压缩机；在暂时关闭压缩机之后,判断内风机是否发生故障；若判定内风机发生故障,则控制压缩机保持关闭；若判定内风机未发生故障,则控制压缩机重新启动。使其在内风机可能存在隐患的第一时间就停止运行,这样可以防止压缩机液击及压缩机排气压力不断升高,避免对压缩机造成损坏。压缩机暂时关闭之后确认了内风机发生故障则保持压缩机关闭,如果排除内风机存在故障,那么重启压缩机,空调器正常运作。本发明的空调器能够实现上述的控制方法,因此也能够在内风机存在故障时,较好地保护压缩机。(The present invention relates to air-conditioning technical field, a kind of air conditioner and its control method are disclosed.The control method of air conditioner includes: to judge whether inner blower the first exception occurs；When there is the first exception in inner blower, temporary close compressor；After temporary close compressor, judge whether inner blower breaks down；If it is determined that inner blower breaks down, then compressor remains closed for control；If it is determined that inner blower does not break down, then compressor restarting is controlled.Making it in inner blower, there may be the first times of hidden danger with regard to out of service, can prevent compressor liquid hammer and Compressor Discharge Pressure from constantly increasing in this way, avoid damaging compressor.It confirmed that inner blower breaks down after compressor temporary close, compressor kept to close, there are failure, reset itself, air conditioner normal operations if excluding inner blower.Air conditioner of the invention can be realized above-mentioned control method, therefore also can preferably protect compressor in inner blower there are when failure.)

1. a kind of control method of air conditioner, the air conditioner include inner blower and compressor, which is characterized in that the air conditioner Control method include:

It is abnormal to judge whether the inner blower occurs first；

When there is the first exception in the inner blower, compressor described in temporary close；

After compressor described in temporary close, judge whether the inner blower breaks down；

If it is determined that the inner blower breaks down, then compressor remains closed described in control；If it is determined that the inner blower does not occur Failure then controls the compressor restarting.

2. the control method of air conditioner according to claim 1, which is characterized in that described to judge whether the inner blower goes out Existing first abnormal step, specifically includes:

In the first preset time after powering, if not receiving the pulse signal or the inner blower of the inner blower feedback Revolving speed continuously less than the first preset rotation speed, then it is first abnormal to determine that the inner blower occurs, otherwise, it is determined that the inner blower is not It is abnormal to occur described first.

3. the control method of air conditioner according to claim 2, which is characterized in that first preset time is 45- 60s。

4. the control method of air conditioner according to claim 2, which is characterized in that first preset rotation speed is 80- 150rpm。

5. the control method of air conditioner described in any one of -4 according to claim 1, which is characterized in that described in temporary close After the compressor, the step of whether inner blower breaks down judged, is specifically included:

After compressor described in temporary close, stop powering to the inner blower；

Self-stopping technology has been powered to the inner blower by powering again to the inner blower after the second preset time；

The inner blower again it is electric after, it is abnormal to judge whether the inner blower occurs second；

If second exception occurs in the inner blower, determine that the inner blower breaks down, otherwise, it is determined that the inner blower It does not break down.

6. the control method of air conditioner according to claim 5, which is characterized in that second preset time is 10- 60s。

7. the control method of air conditioner according to claim 5, which is characterized in that it is described the inner blower again it is electric Later, judge whether the inner blower the second abnormal step occurs, specifically include:

The inner blower again it is electric in the case where, in third preset time, if not receiving inner blower feedback The revolving speed of pulse signal or the inner blower then determines that the inner blower occurs described second continuously less than the second preset rotation speed It is abnormal, otherwise, it is determined that the inner blower does not occur second exception.

8. the control method of air conditioner according to claim 7, which is characterized in that the third preset time is 20- 100s。

9. the control method of air conditioner according to claim 7, which is characterized in that second preset rotation speed is 80- 150rpm。

10. the control method of air conditioner described in any one of -4 according to claim 1, which is characterized in that the air conditioner Control method further include:

If it is determined that the inner blower breaks down, then the prompt information of the inner blower failure is exported, and controls the air conditioner It is out of service.

11. a kind of air conditioner, which is characterized in that the air conditioner (100) includes inner blower (120), compressor (150) and control Device (170) processed, the controller (170) are arranged to:

It is abnormal to judge whether the inner blower (120) occurs first；

When there is first exception in the inner blower (120), compressor (150) described in temporary close；

After the compressor described in temporary close (150), judge whether the inner blower (120) breaks down；

If it is determined that the inner blower (120) is broken down, then controls the compressor (150) and remain turned-off；If it is determined that in described Blower (120) does not break down, then controls the compressor (150) restarting.

Technical field

The present invention relates to air-conditioning technical fields, in particular to a kind of air conditioner and its control method.

Background technique

The main component of general air conditioner includes compressor, condenser, outer machine blower, evaporator, inner blower.Work as inner blower It when failure, is easy to keep Compressor Discharge Pressure excessively high, in refrigeration, can also generate liquid hit phenomenon.These phenomenons are easy damage Bad cooler compressor leads to its reduced service life.But it, can not in the prior art, when inner blower failure hidden danger Compressor is protected in time.

Summary of the invention

Problems solved by the invention is protected in time to compressor how in inner blower failure hidden danger.

To solve the above problems, air conditioner includes interior wind in a first aspect, the present invention provides a kind of control method of air conditioner The control method of machine and compressor, air conditioner includes:

It is abnormal to judge whether inner blower occurs first；

When there is the first exception in inner blower, temporary close compressor；

After temporary close compressor, judge whether inner blower breaks down；

If it is determined that inner blower breaks down, then compressor remains closed for control；If it is determined that inner blower does not break down, then control Compressor restarting processed.

The beneficial effect of this programme is, first temporary when judging the first exception occur, but not determining that inner blower breaks down Close compressor keeps it just out of service there may be first time when potential faults in blower, can prevent compressor in this way Liquid hammer and Compressor Discharge Pressure constantly increase, and avoid damaging compressor.It confirmed after compressor temporary close Inner blower breaks down, and compressor is kept to close, and compressor or other air supply rates is avoided to be damaged；If in excluding There are failures for blower, then reset itself, air conditioner normal operation.

In an embodiment of the present invention, judge whether inner blower the first abnormal step occurs, specifically include: opening In the first preset time after machine, if not receiving the pulse signal of inner blower feedback or the revolving speed of inner blower continuously less than the One preset rotation speed it is abnormal then to determine that inner blower occurs first, otherwise, it is determined that inner blower does not occur the first exception.

In this scenario, can result in the excessively high reason of system pressure may be that inner blower stopping or revolving speed are too low.And Starting up's stage is easiest to occur and detect fan operation exception.Therefore, the first exception can be after powering In first preset time, if the revolving speed of the pulse signal or inner blower that do not receive inner blower feedback is preset continuously less than first Revolving speed.It can quickly and accurately judge whether inner blower occurs easily causing the exception of high pressure by the method.

In an embodiment of the present invention, the first preset time is 45-60s.

Further, the first preset rotation speed is 80-150rpm.

In the present solution, select suitable parameter, be conducive to inner blower whether occur abnormal to make accurate judgement.Such as First preset time of fruit setting is too long, causes to judge overlong time, is easy the situation for making compressor in interior fan operation exception Under continued working for a long time, this be undoubtedly it is unfavorable to compressor.But if the first preset time is too short, and is difficult to ensure and sentences Disconnected is accurate.By the first preset rotation speed be arranged in 80-150rpm, be because if what is be arranged is higher, starting inner blower after, The case where being not readily reachable by higher rotation speed, being then easy to appear erroneous judgement；If what is be arranged is lower, the operation exception of inner blower can It can be failed to judge.

In an embodiment of the present invention, after temporary close compressor, judge what whether inner blower broke down Step specifically includes:

After temporary close compressor, stop powering to inner blower；

Self-stopping technology has been powered to inner blower by powering again to inner blower after the second preset time；

Inner blower again it is electric after, it is abnormal to judge whether inner blower occurs second；

If the second exception occurs in inner blower, determine that inner blower breaks down, otherwise, it is determined that inner blower does not break down.

In the present solution, having due to first is abnormal after temporary close compressor and whether there is failure really to inner blower Recognize.Confirmation method is first to shut down the second preset time of inner blower, is then powered again, inner blower obtain it is electric after judge inner blower It is abnormal whether second is occurred.Inner blower suspends the accuracy that the second preset time advantageously ensures that subsequent judgement.

In an embodiment of the present invention, the second preset time is 10-60s.During tens of seconds of pause, inner blower It is possible that one-time detection is to subsequent interference, or the unfavorable factor of some other pair of fan operation of exclusion before excluding.

In an embodiment of the present invention, inner blower again it is electric after, it is different to judge whether inner blower occurs second Normal step, specifically includes:

Inner blower again it is electric in the case where, in third preset time, if do not receive inner blower feedback pulse The revolving speed of signal or inner blower then determines that the second exception occurs in inner blower, otherwise, it is determined that interior continuously less than the second preset rotation speed It is abnormal that blower does not occur second.

In an embodiment of the present invention, third preset time is 20-100s.

In an embodiment of the present invention, the second preset rotation speed is 80-150rpm.

In this scenario, judge whether inner blower the second exception occurs, it is similar to the first exception of appearance is judged whether.When interior Blower again it is electric in the case where, it is abnormal to confirm whether inner blower occurs second by detection pulse signal or revolving speed.Tool Body, be confirmed whether that the second abnormal time namely third preset time occurs, can it is shorter compared to the first preset time or Person is longer, and compressor is not run at this time, therefore the risk excessively high there is no system pressure.

In an embodiment of the present invention, the control method of air conditioner further include: if it is determined that inner blower breaks down, then The prompt information of inner blower failure is exported, and it is out of service to control air conditioner.

In this scheme, when determine inner blower break down, then quote the relevant prompt information of failure, and stop air-conditioning Device is run to protect other component, while energy saving.

Second aspect, the embodiment of the present invention provide a kind of air conditioner, and air conditioner includes inner blower, compressor and control Device, controller are arranged to:

It is abnormal to judge whether inner blower occurs first；

When there is the first exception in inner blower, temporary close compressor；

After temporary close compressor, judge whether inner blower breaks down；

If it is determined that inner blower breaks down, then compressor remains closed for control；If it is determined that inner blower does not break down, then control Compressor restarting processed.

The air conditioner of the program can be to realize control method provided by above-mentioned first aspect, therefore can be in interior wind When machine failure hidden danger, compressor is protected in time.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of air conditioner provided in an embodiment of the present invention；

Fig. 2 is the composition block diagram of air conditioner provided in an embodiment of the present invention；

Fig. 3 is the flow chart of the control method of air conditioner in the embodiment of the present invention；

Fig. 4 be an embodiment of the present invention in after temporary close compressor, judge what whether inner blower broke down Flow chart；

Fig. 5 is the control logic schematic diagram of air conditioner in a specific embodiment of the invention.

Description of symbols:

100- air conditioner；110- inner coil pipe；120- inner blower；The outer coil pipe of 130-；The outer blower of 140-；150- compressor； 160- speed probe；170- controller.

Specific embodiment

The main component of general air conditioner includes compressor, condenser, outer blower, evaporator, inner blower, when inner blower goes out Existing failure, for example when blower line disconnects, blower line does not insert firmly, has foreign matter in motor damage, blower, inner blower can not be just Often operating.When inner blower failure is unable to operate normally, if user opens air-conditioning heating mode, compressor and outer blower are normal Operation and inner blower is not run, will lead to air-conditioning system pressure and exhaust constantly increase.In severe work in experimental test procedures If inner blower is unable to operate normally under condition, after compressor runs 2min or so, the high pressure of air-conditioning system is up to 4.1Mpa, it is possible to Reach the maximum pressure that compressor allows to run, causes air conditioner operational safety hidden danger big, while easily to portions such as system compressors Part will cause certain damage, lead to air conditioner reduced service life.If user opens refrigeration mode, when inner blower failure, steam The liquid refrigerant of machine, which can not normally evaporate, in hair device returns to compressor, will lead to compressor liquid hammer and Compressor Discharge Pressure It constantly increases, therefore compressor is caused greatly to damage.

In order to improve above-mentioned problem, the embodiment of the present invention provides a kind of air conditioner and its control method.To make the present invention Above objects, features, and advantages can become apparent understandable, specific embodiments of the present invention are done in detail with reference to the accompanying drawing Explanation.

Fig. 1 is the structural schematic diagram of air conditioner 100 provided in an embodiment of the present invention；Fig. 2 is provided in an embodiment of the present invention The composition block diagram of air conditioner 100.As depicted in figs. 1 and 2, air conditioner 100 provided in an embodiment of the present invention include inner coil pipe 110, Outer coil pipe 130, inner blower 120, outer blower 140, compressor 150 and controller 170, inner coil pipe 110 and outer coil pipe 130 be not It can be respectively as evaporator and condenser under same operating condition.Under normal conditions, outer coil pipe 130, outer blower 140 and compressor 150 are assembled in outer cage body, are placed in outdoor；And inner coil pipe 110, inner blower 120 are then assembled in inner casing body, are placed in It is indoor.Inner coil pipe 110, outer coil pipe 130, compressor 150 are by pipeline connection forming circuit for refrigerant circulation.Compressor 150, Inner blower 120, outer blower 140 are electrically connected with controller 170, so as to controllably open, close and adjust operation ginseng Number.

Further, air conditioner 100 further includes the speed probe 160 for detecting 120 revolving speed of inner blower.Revolution speed sensing Device 160 is electrically connected with controller 170, and 120 revolving speed of inner blower of acquisition can be sent to controller 170 in real time, to control The revolving speed of the monitoring inner blower 120 of device 170.In addition, inner blower 120 can be believed when operating normally to 170 feedback pulse of controller Number.

In the present embodiment, controller 170 is arranged to: it is abnormal to judge whether the inner blower 120 occurs first；Work as institute State inner blower 120 occur described first it is abnormal when, compressor 150 described in temporary close；The compressor 150 described in temporary close it Afterwards, judge whether the inner blower 120 breaks down；If it is determined that the inner blower 120 breaks down, then the compressor is controlled 150 remain turned-off；If it is determined that the inner blower 120 does not break down, then controls the compressor 150 and restart.

There is the first exception in judgement, then whether first temporary close compressor 150 further determines inner blower 120 It breaks down.Make that there are first times when hidden danger with regard to out of service in discovery inner blower 120 in this way, evaporator can be prevented The liquid refrigerant of interior machine can not normally evaporate return to compressor 150 caused by 150 row of 150 liquid hammer of compressor and compressor Atmospheric pressure constantly increases, and damages caused by compressor 150.It confirmed that inner blower 120 occurs after 150 temporary close of compressor Failure then keeps compressor 150 to close, and compressor 150 or other air supply rates is avoided to be damaged；If excluding inner blower 120 there are failures, then reset itself 150, air conditioner 100 can restore normal operation.

Fig. 3 is the flow chart of the control method of air conditioner in the embodiment of the present invention.Referring to figure 3., this method is suitable for this The air conditioner 100 that inventive embodiments provide.The control method of air conditioner includes:

It is abnormal to judge whether inner blower occurs first by step S100.

By taking air conditioner of the embodiment of the present invention 100 as an example, pulse signal that controller 170 is fed back according to inner blower 120 and 120 rotary speed information of inner blower that speed probe 160 is fed back, comes whether comprehensive descision inner blower 120 the first exception occurs.Specifically , in the first preset time of controller 170 after powering, if not receiving the pulse signal or interior of the feedback of inner blower 120 It is abnormal then to determine that inner blower 120 occurs first continuously less than the first preset rotation speed for the revolving speed of blower 120.If controller 170 The revolving speed of the pulse signal and inner blower 120 that receive the feedback of inner blower 120 reaches the first preset rotation speed, then wind in determining It is abnormal that machine 120 does not occur first.

Specifically, in order to avoid controller 170 is failed to judge or is judged by accident to what inner blower 120 was operating abnormally, first it is default when Between be 45-60s, the first preset rotation speed be 80-150rpm.Preferably, the first preset time is 50s, and the first preset rotation speed is 100rpm.By selecting suitable parameter, be conducive to whether occur making accurate judgement extremely to inner blower 120.If set The first preset time set is too long, causes to judge overlong time, is easy the feelings for being operating abnormally compressor 150 in inner blower 120 It was continued working under condition for a long time, it is unfavorable to compressor 150 that this is undoubtedly.But if the first preset time is too short, and is difficult to Guarantee the accurate of judgement.If higher (such as 400rpm) that the first preset rotation speed is arranged does not allow after starting inner blower 120 Easily reach higher rotation speed, even if inner blower 120 is normal at this time, is also easy to be judged as occurring the first exception.If first is default Revolving speed is arranged lower, then the operation exception of inner blower 120 may be failed to judge.Certainly, in the other embodiment of the present invention In, the first preset time, the first preset rotation speed can be adjusted according to the actual situation, without being limited to the present embodiment institute The range of offer.

Step S200, when there is the first exception in inner blower, temporary close compressor.

By taking air conditioner 100 provided in an embodiment of the present invention as an example, when controller 170 determines that the appearance first of inner blower 120 is different Chang Shi, control compressor 150 temporarily cease operation.

Step S300 judges whether inner blower breaks down after temporary close compressor.

By taking air conditioner 100 provided in an embodiment of the present invention as an example, after temporary close compressor 150, controller 170 judges Whether inner blower 120 breaks down.When judging that the first exception occurs in inner blower 120 in the step s 100, it is believed that be interior wind There are the hidden danger of failure for machine 120, and step S300 is for confirming whether blower breaks down.Specifically, can be to inner blower 120 Operation conditions continue to monitor, such as feedback, speed conditions of pulse signal etc., whether to confirm inner blower 120 It breaks down.Specific mode can with judge it is similar whether inner blower 120 mode of the first exception occurs in step S100, Adjustable relevant parameter.

Step S400, if it is determined that inner blower breaks down, then compressor remains closed for control；If it is determined that inner blower does not occur Failure then controls compressor restarting.

By taking air conditioner 100 provided in an embodiment of the present invention as an example, controller 170 breaks down it in judgement inner blower 120 Afterwards, determined that failure exists and do not exclude substantially at this time, then compressor 150 is then kept to close.If it is determined that inner blower 120 is not Break down, then before first it is abnormal may be caused by interim reason, it is abnormal at this time to have excluded, then controller 170 control compressors 150 restart, and normal work are restored to, to meet the needs of users.

Further, controller 170 if it is determined that inner blower 120 breaks down, then believe by the prompt for exporting 120 failure of inner blower Breath, and it is out of service to control air conditioner 100.Output prompt information can remind user in time, for example loudspeaker is enabled (not show in figure It sounds the alarm out).Control air conditioner 100 it is out of service can each component of effective protection air conditioner 100, such as inner blower 120 When stuck by foreign matter, closing inner blower 120 can be avoided motor and burn.After air conditioner 100 is closed, outer blower 140, inner blower 120 equal components are out of service, in this way being capable of energy saving.

Fig. 4 be an embodiment of the present invention in after temporary close compressor, judge what whether inner blower broke down Flow chart.As shown in figure 4, step S300 can be specifically included on the basis of Fig. 3 embodiment:

Step S310 stops powering to inner blower after temporary close compressor.

By taking air conditioner 100 provided in an embodiment of the present invention as an example, controller 170 leads to after temporary close compressor 150 The corresponding switch of control is crossed to stop powering to inner blower 120.

Step S320, self-stopping technology have been powered to inner blower by powering again to inner blower after the second preset time.

By taking air conditioner 100 provided in an embodiment of the present invention as an example, self-stopping technology has been powered default by second to inner blower 120 After time, controller 170 thinks that inner blower 120 is powered by controlling corresponding switch again.Specifically, the second preset time It can be set to 10-60s, it is preferred that the second preset time is set as 30s.Because inner blower 120 is caused the first exception occur Reason may be some interim reasons, for example foreign temporarily blocks blower.It is waited after stopping and powering to inner blower 120 Second preset time, these external influence factors may exclude automatically.Therefore wait the second preset time later again to inner blower 120 power supplies can guarantee subsequent to the accuracy judged with the presence or absence of failure.

Step S330, inner blower again it is electric after, it is abnormal to judge whether inner blower occurs second.

By taking air conditioner 100 provided in an embodiment of the present invention as an example, controller 170 inner blower 120 again it is electric after, sentence It is abnormal whether disconnected inner blower 120 occurs second.Specifically, inner blower 120 again it is electric in the case where, in third preset time It is interior, if not receiving the pulse signal of the feedback of inner blower 120 or the revolving speed of inner blower 120 continuously less than the second preset rotation speed, It is abnormal then to determine that inner blower 120 occurs second, otherwise, it is determined that inner blower 120 does not occur the second exception.Specifically, third is default Time calculate starting point can be inner blower 120 again it is electric at the time of, be also possible to inner blower 120 it is electric later at the time of. Optionally, third preset time is 20-100s, preferably 80s；Second preset rotation speed is 80-150rpm, preferably 100rpm. Judge whether inner blower 120 occurs the second abnormal duration namely third preset time, it can be compared to the first preset time more Short or longer, since compressor this period 150 is not run, so even this time is slightly long, also there is no system pressures Excessively high risk.

Specifically, in some embodiments, it is different can to judge whether inner blower 120 occurs second with multiple periods Often.For example, the pulse signal of the feedback of inner blower 120 is not received in the 4th preset time from inner blower 120 obtains electricity again Or 120 revolving speed of inner blower continuously less than third preset rotation speed, then it is abnormal to determine that inner blower 120 occurs second for controller 170.If 120 feedback pulse signal of inner blower is received in the 4th preset time and revolving speed is not less than third preset rotation speed, then also needing Further to judge: obtain the operating status of inner blower 120 after the 5th preset time again, if 120 feedback pulse of inner blower is believed Number and revolving speed be not less than third preset rotation speed, it is abnormal just to determine that inner blower 120 does not occur second at this time.If inner blower 120 is Non- feedback pulse signal or revolving speed are less than third preset rotation speed in five preset times, then are still determined as that inner blower 120 occurs Second is abnormal.

Specifically, the 4th preset time can be 40-60s, the 5th preset time is 20-30s, and third preset rotation speed can be with For 80-150rpm.Fig. 5 is the control logic schematic diagram of air conditioner in a specific embodiment of the invention.As shown in figure 5, at one In specific embodiment, it is abnormal then the following steps are included: obtaining again from inner blower 120 to judge whether inner blower 120 occurs second The pulse signal or 120 revolving speed of inner blower for not receiving the feedback of inner blower 120 in the 50s that electricity rises are then controlled continuously less than 100rpm It is abnormal that device 170 processed determines that inner blower 120 occurs second.If receiving 120 feedback pulse signal of inner blower and revolving speed in 50s Not less than 100rpm, then also needing further to judge: the operating status to inner blower 120 is obtained after 30s again, if inner blower 120 feedback pulse signals and revolving speed are not less than 100rpm, and it is abnormal just to determine that inner blower 120 does not occur second at this time.If inner blower 120 in the 5th preset time (namely period of 30s) non-feedback pulse signal or revolving speed be less than 100rpm, then still determine It is abnormal to occur second for inner blower 120.Judged as can be seen that being divided into two periods (50s and 30s), it can be to avoid The case where first period does not occur exception, but second period restores misoperation again.

Step S340 determines that inner blower breaks down, otherwise, it is determined that inner blower is not if the second exception occurs in inner blower It breaks down.

By taking air conditioner 100 provided in an embodiment of the present invention as an example, after determining that the second exception occurs in inner blower 120, that is, sentence Determine inner blower 120 to break down.Otherwise, it is determined that inner blower 120 does not break down, at this time it is considered that inner blower 120 is occurring First is abnormal recovered later normal.After determining that blower breaks down or do not break down, controller 170 can continue Air conditioner 100 is controlled according to above-mentioned steps S400, details are not described herein again.

Although present disclosure is as above, present invention is not limited to this.Anyone skilled in the art are not departing from this It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute Subject to the range of restriction.