CN203455136U - Electric pressure cooker and fault detection device thereof - Google Patents

Electric pressure cooker and fault detection device thereof Download PDF

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Publication number
CN203455136U
CN203455136U CN201320544955.4U CN201320544955U CN203455136U CN 203455136 U CN203455136 U CN 203455136U CN 201320544955 U CN201320544955 U CN 201320544955U CN 203455136 U CN203455136 U CN 203455136U
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CN
China
Prior art keywords
cooking saucepan
electric pressure
pressure cooking
diode
resistance
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Expired - Fee Related
Application number
CN201320544955.4U
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Chinese (zh)
Inventor
周伟宏
李新义
陈瑞德
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Midea Group Co Ltd
Guangdong Midea Consumer Electric Manufacturing Co Ltd
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Midea Group Co Ltd
Guangdong Midea Consumer Electric Manufacturing Co Ltd
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Priority to CN201320544955.4U priority Critical patent/CN203455136U/en
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Publication of CN203455136U publication Critical patent/CN203455136U/en
Anticipated expiration legal-status Critical
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Abstract

The utility model discloses a fault detection device of an electric pressure cooker. The device comprises a pressure sensor and a controller. The pressure sensor detects pressure values in an electric pressure cooker. The controller is connected with the pressure sensor. When the pressure value is lower than a first preset value or larger than a second preset value, the controller determines faults of the pressure sensor, wherein the second preset value is larger than the first preset value. The fault detection device of the electric pressure cooker can detect whether the pressure sensor goes wrong, and reminds an user to take corresponding measures when faults of the pressure sensor are detected, thereby improving security of use of the product and ensuring use safety of users. The utility model also discloses an electric pressure cooker.

Description

Electric pressure cooking saucepan and failure detector thereof
Technical field
The utility model relates to household electrical appliance technical field, particularly a kind of failure detector of electric pressure cooking saucepan and a kind of electric pressure cooking saucepan.
Background technology
Existing electric pressure cooking saucepan in use adopts pressure sensor carries out pressure detection, and electric control gear, according to the pressure detecting, is controlled electric pressure cooking saucepan and heated, thereby realizes the cooking process of electric pressure cooking saucepan.
But in using the process of electric pressure cooking saucepan, the problem of existence is, pressure transducer is in use if there is fault, will cause the pressure that detects inaccurate, like this, electric control gear just can not be correct control electric pressure cooking saucepan in pressure, have influence on user's use safety.
Utility model content
The purpose of this utility model is intended to solve at least to a certain extent above-mentioned technological deficiency.
For this reason, object of the utility model is to propose a kind of failure detector of electric pressure cooking saucepan, whether the failure detector of this electric pressure cooking saucepan can break down by detected pressures sensor, and reminding user is taked corresponding safety practice when pressure sensor failure being detected, improve the security that product is used, guaranteed user's use safety.
Another object of the present utility model is to propose a kind of electric pressure cooking saucepan.
For achieving the above object, the failure detector of a kind of electric pressure cooking saucepan that the utility model proposes on the one hand, comprising: pressure transducer, and described pressure transducer detects the force value in electric pressure cooking saucepan; Controller, described controller is connected with described pressure transducer, and when described force value is less than the first preset value or is greater than the second preset value, described controller judges described pressure sensor failure, and wherein, described the second preset value is greater than described the first preset value.
According to the failure detector of the electric pressure cooking saucepan the utility model proposes, force value in electric pressure cooking saucepan pressure transducer being detected by controller judges, and when pot inner pressure value is less than the first preset value or is greater than the second preset value, judgement pressure sensor failure, thereby realize, the fault of pressure transducer is detected, while having solved the pressure sensor failure of electric pressure cooking saucepan, affect the problem of user security, improved the safety in utilization of product, guarantee user's use safety.
In the utility model, the failure detector of above-mentioned electric pressure cooking saucepan, also comprises: display, described display is connected with described controller, when described controller judges described pressure sensor failure described in display show failure message.Wherein, described display can be liquid crystal display.
Further, the failure detector of above-mentioned electric pressure cooking saucepan, also comprises: prompting device, described prompting device is connected with described controller, when described controller judges described pressure sensor failure described in prompting device send alarm.Wherein, described prompting device can be hummer.
Utilize display and/or prompting device to carry out fault demonstration and/or alarm, the pressure sensor failure in reminding user electric pressure cooking saucepan, should be noted that safety, and reminding user keeps in repair in time while using electric pressure cooking saucepan.In addition, also can take some safety prevention measures to electric pressure cooking saucepan, for example controller control electric pressure cooking saucepan stops heating, avoids damaging because of fault.
Further, when described force value is more than or equal to described the first preset value and is less than or equal to described the second preset value, described controller judges that described pressure transducer is normal, and controls described electric pressure cooking saucepan and carry out work.
Particularly, described controller comprises the peripheral circuit of control chip and control chip, and wherein, the peripheral circuit of described control chip comprises: the first resistance, one end of described the first resistance is connected with the output terminal of described pressure transducer, the other end ground connection of described the first resistance; The first diode, described the first diode is in parallel with described the first resistance, the plus earth of described the first diode, the negative electrode of described the first diode is connected with one end of described the first resistance; The second diode, described the second diode is connected with described the first diode, and the anode of described the second diode is connected with the negative electrode of described the first diode, and the negative electrode of described the second diode is connected with default power supply; The first electric capacity and second resistance of series connection, one end ground connection of described the first electric capacity, the other end of described the first electric capacity is connected respectively with one end of described the second resistance with described control chip, and the other end of described the second resistance is connected with one end of described the first resistance.
For achieving the above object, the utility model has proposed a kind of electric pressure cooking saucepan on the other hand, comprises the failure detector of above-mentioned electric pressure cooking saucepan.
According to the electric pressure cooking saucepan the utility model proposes, can detect the fault of pressure transducer, while having solved the pressure sensor failure of electric pressure cooking saucepan, affect the problem of user security, improve the safety in utilization of product, guarantee user's use safety.
The aspect that the utility model is additional and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or the additional aspect of the utility model and advantage will become from the following description of the accompanying drawings of embodiments and obviously and easily understand, wherein:
Fig. 1 is according to the block diagram of the failure detector of the electric pressure cooking saucepan of the utility model embodiment;
Fig. 2 is according to the block diagram of the failure detector of the electric pressure cooking saucepan of an embodiment of the utility model;
Fig. 3 is according to the circuit diagram of the failure detector of the electric pressure cooking saucepan of a specific embodiment of the utility model;
Fig. 4 is for processing schematic diagram according to the failure detector middle controller of the electric pressure cooking saucepan of an embodiment of the utility model to the pressure data detecting;
Fig. 5 is according to the process flow diagram of the fault detection method of the electric pressure cooking saucepan of the utility model embodiment; And
Fig. 6 is according to the block diagram of the electric pressure cooking saucepan of the utility model embodiment.
Reference numeral:
Peripheral circuit 202, the first resistance R 1, the first diode D1, the second diode D2, the first capacitor C 1 and second resistance R 2 of pressure transducer 10, controller 20, control chip 201, control chip.
Embodiment
Describe embodiment of the present utility model below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Below by the embodiment being described with reference to the drawings, be exemplary, only for explaining the utility model, and can not be interpreted as restriction of the present utility model.
Disclosing below provides many different embodiment or example to be used for realizing different structure of the present utility model.Of the present utility model open in order to simplify, hereinafter the parts of specific examples and setting are described.Certainly, they are only example, and object does not lie in restriction the utility model.In addition, the utility model can be in different examples repeat reference numerals and/or letter.This repetition is in order to simplify and object clearly, itself do not indicate the relation between discussed various embodiment and/or setting.In addition, the various specific technique that the utility model provides and the example of material, but those of ordinary skills can recognize the property of can be applicable to of other techniques and/or the use of other materials.In addition, First Characteristic described below Second Characteristic it " on " structure can comprise that the first and second Characteristics creations are for the direct embodiment of contact, also can comprise the embodiment of other Characteristics creation between the first and second features, such the first and second features may not be direct contacts.
In description of the present utility model, it should be noted that, unless otherwise prescribed and limit, term " installation ", " being connected ", " connection " should be interpreted broadly, for example, can be mechanical connection or electrical connection, also can be the connection of two element internals, can be to be directly connected, and also can indirectly be connected by intermediary, for the ordinary skill in the art, can understand as the case may be the concrete meaning of above-mentioned term.
With reference to description and accompanying drawing below, by these and other aspects of clear embodiment of the present utility model.In these descriptions and accompanying drawing, specifically disclose some specific implementations in embodiment of the present utility model, represent to implement some modes of the principle of embodiment of the present utility model, but should be appreciated that the scope of embodiment of the present utility model is not limited.On the contrary, embodiment of the present utility model comprises spirit and all changes within the scope of intension, modification and the equivalent that falls into additional claims.
Describe with reference to the accompanying drawings the failure detector of electric pressure cooking saucepan, the fault detection method of electric pressure cooking saucepan proposing according to the utility model embodiment and there is the electric pressure cooking saucepan of this failure detector.
Fig. 1 is according to the block diagram of the failure detector of the electric pressure cooking saucepan of the utility model embodiment.As shown in Figure 1, the failure detector of this electric pressure cooking saucepan comprises: pressure transducer 10 and controller 20.Wherein, the force value that pressure transducer 10 detects in electric pressure cooking saucepan.Controller 20 is connected with pressure transducer 10, when pot inner pressure value is less than the first preset value or is greater than the second preset value, and controller 20 judgement pressure transducer 10 faults, wherein, the second preset value is greater than the first preset value.
That is to say, pressure transducer 10 sends to controller 20 by the pressure signal in the electric pressure cooking saucepan detecting, and when controller 20 receives pot inner pressure information, and whether the force value that judgement detects is normal.If the force value detecting in abnormality, is not normal force value, controller 20 judgement pressure transducers 10 break down.
In an embodiment of the present utility model, as shown in Figure 2, the failure detector of above-mentioned electric pressure cooking saucepan also comprises: display 30.Display 30 is connected with controller 20, and when controller 30 judgement pressure transducer 10 fault, display 30 shows failure message.Wherein, display 30 can be liquid crystal display, can be also light-emitting diode display.
Further, as shown in Figure 2, the failure detector of above-mentioned electric pressure cooking saucepan also comprises: prompting device 40.Prompting device 40 is connected with controller 20, and when controller 20 judgement pressure transducer 10 fault, prompting device 40 sends alarm.Wherein, prompting device 40 can be hummer.
Utilize display and/or prompting device to carry out fault demonstration and/or alarm, the pressure sensor failure in reminding user electric pressure cooking saucepan, should be noted that safety, and reminding user keeps in repair in time while using electric pressure cooking saucepan.In addition, when controller judgement pressure sensor failure, also can take some safety prevention measures to electric pressure cooking saucepan, for example controller control electric pressure cooking saucepan stops heating, thereby avoids damaging electric pressure cooking saucepan because of pressure sensor failure.
In a specific embodiment of the present utility model, as shown in Figure 3, controller 20 comprises the peripheral circuit 202 of control chip 201 and control chip, wherein, the peripheral circuit 202 of control chip comprises: the first resistance R 1, the first diode D1, the second diode D2, the first capacitor C 1 and the second resistance R 2.
Wherein, one end of the first resistance R 1 is connected with the output terminal TTOP of pressure transducer 10, the other end ground connection of the first resistance R 1.The first diode D1 is in parallel with the first resistance R 1, the plus earth of the first diode D1, and the negative electrode of the first diode D1 is connected with one end of the first resistance R 1.The second diode D2 connects with the first diode D1, and the anode of the second diode D2 is connected with the negative electrode of the first diode D1, and the negative electrode of the second diode D2 is connected with default power vd D1.The first capacitor C 1 and the second resistance R 2 series connection, one end ground connection of the first capacitor C 1, the other end of the first capacitor C 1 is connected respectively with one end of the second resistance R 2 with the pin TTOP-IC of control chip 201, and the other end of the second resistance R 2 is connected with one end of the first resistance R 1.
Further, in an embodiment of the present utility model, when force value is more than or equal to the first preset value and is less than or equal to the second preset value, controller 20 judgement pressure transducers 10 are normal, and control electric pressure cooking saucepan and carry out work.
Particularly, in an example of the present utility model, as shown in Figure 4, the first preset value can be B, the second preset value can be C, and the entire scope of the pressure data that pressure transducer 10 detects is between A-D region, wherein, A is less than B, and B is less than C, and C is less than D, for example, A can be 10H for 0, B, C can be FCH, and D can be FFH, is understandable that, the data of A, B, C, D can change adjustment, are not fixing data, specifically can be according to the conscientious demarcation of actual conditions.
Particularly, as shown in Figure 4, C-DWei abnormal data district, A-BHe region, region, B-CWei normal data district, region, if the pressure data that pressure transducer 10 detects within the scope of normal data district, judges that pressure transducer 10 is normal, if the pressure data that pressure transducer 10 detects is in abnormal data district, judge pressure transducer 10 faults, thereby reach the object of detected pressures sensor fault.
In the utility model embodiment, pressure transducer 10 detects the force value in electric pressure cooking saucepans, and force value is sent to controller 20 by circuit, when controller 20 receives the signal of force value, judges that whether the force value that pressure transducer 10 detects is normal.If force value is in abnormality, the force value that pressure transducer 10 detects is in abnormal data district, and controller 20 judgement pressure transducers 10 break down; If force value is in normal condition, the force value that pressure transducer 10 detects is in normal data district, and controller 20 judgement pressure transducers 10 are normal, and controller 20 is controlled electric pressure cooking saucepan and carried out work.
The failure detector of the electric pressure cooking saucepan proposing according to the utility model embodiment, force value in electric pressure cooking saucepan pressure transducer being detected by controller judges, and when pot inner pressure value is less than the first preset value or is greater than the second preset value, judgement pressure sensor failure, thereby realize, the fault of pressure transducer is detected, while having solved the pressure sensor failure of electric pressure cooking saucepan, affect the problem of user security, improved the safety in utilization of product, guarantee user's use safety.
Fig. 5 is according to the process flow diagram of the fault detection method of the electric pressure cooking saucepan of the utility model embodiment.As shown in Figure 5, the fault detection method of this electric pressure cooking saucepan comprises the following steps:
S1, detects the force value in electric pressure cooking saucepan.
S2, when force value is less than the first preset value or is greater than the second preset value, judges the pressure sensor failure in electric pressure cooking saucepan, and wherein, the second preset value C is greater than the first preset value B, i.e. C>B.
That is to say, when the force value detecting is less than B or is greater than C, judge pressure sensor failure.Specifically as shown in Figure 4, the force value detecting is ,Ji abnormal data district between the C-D of A-BHuo region, region, therefore pressure sensor failure.
Further, when force value is more than or equal to the first preset value and is less than or equal to the second preset value, judgement pressure transducer is normal, and controls electric pressure cooking saucepan and carry out work.
That is to say, when the force value detecting is more than or equal to B and is less than or equal to C, judge that pressure transducer is normal.As shown in Figure 4, the force value detecting is ,Ji normal data district between the B-C of region, therefore pressure transducer is normal, controls electric pressure cooking saucepan and carries out work.
The fault detection method of the electric pressure cooking saucepan proposing according to the utility model embodiment, by the force value in the electric pressure cooking saucepan detecting, judge, when pot inner pressure value is less than the first preset value or is greater than the second preset value, judge pressure sensor failure, thereby realize, the fault of pressure transducer is detected, while having solved the pressure sensor failure of electric pressure cooking saucepan, affect the problem of user security, improved the safety in utilization of product, guarantee user's use safety.In addition, the fault detection method of this electric pressure cooking saucepan is simple and reliable, is easy to carry out.
Fig. 6 is according to the block diagram of the electric pressure cooking saucepan of the utility model embodiment.As shown in Figure 6, this electric pressure cooking saucepan 601 comprises the failure detector 602 of above-mentioned electric pressure cooking saucepan.
The electric pressure cooking saucepan proposing according to the utility model embodiment, can detect the fault of pressure transducer, affects the problem of user security while having solved the pressure sensor failure of electric pressure cooking saucepan, improves the safety in utilization of product, guarantees user's use safety.
In process flow diagram or any process of otherwise describing at this or method describe and can be understood to, represent to comprise that one or more is for realizing the module of code of executable instruction of the step of specific logical function or process, fragment or part, and the scope of preferred implementation of the present utility model comprises other realization, wherein can be not according to order shown or that discuss, comprise according to related function by the mode of basic while or by contrary order, carry out function, this should be understood by embodiment person of ordinary skill in the field of the present utility model.
The logic and/or the step that in process flow diagram, represent or otherwise describe at this, for example, can be considered to for realizing the sequencing list of the executable instruction of logic function, may be embodied in any computer-readable medium, for instruction execution system, device or equipment (as computer based system, comprise that the system of processor or other can and carry out the system of instruction from instruction execution system, device or equipment instruction fetch), use, or use in conjunction with these instruction execution systems, device or equipment.With regard to this instructions, " computer-readable medium " can be anyly can comprise, storage, communication, propagation or transmission procedure be for instruction execution system, device or equipment or the device that uses in conjunction with these instruction execution systems, device or equipment.The example more specifically of computer-readable medium (non-exhaustive list) comprises following: the electrical connection section (electronic installation) with one or more wirings, portable computer diskette box (magnetic device), random-access memory (ram), ROM (read-only memory) (ROM), the erasable ROM (read-only memory) (EPROM or flash memory) of editing, fiber device, and portable optic disk ROM (read-only memory) (CDROM).In addition, computer-readable medium can be even paper or other the suitable medium that can print described program thereon, because can be for example by paper or other media be carried out to optical scanning, then edit, decipher or process in electronics mode and obtain described program with other suitable methods if desired, be then stored in computer memory.
Should be appreciated that each several part of the present utility model can realize with hardware, software, firmware or their combination.In the above-described embodiment, a plurality of steps or method can realize with being stored in storer and by software or the firmware of suitable instruction execution system execution.For example, if realized with hardware, the same in another embodiment, can realize by any one in following technology well known in the art or their combination: have for data-signal being realized to the discrete logic of the logic gates of logic function, the special IC with suitable combinational logic gate circuit, programmable gate array (PGA), field programmable gate array (FPGA) etc.
Those skilled in the art are appreciated that realizing all or part of step that above-described embodiment method carries is to come the hardware that instruction is relevant to complete by program, described program can be stored in a kind of computer-readable recording medium, this program, when carrying out, comprises step of embodiment of the method one or a combination set of.
In addition, each functional unit in each embodiment of the utility model can be integrated in a processing module, can be also that the independent physics of unit exists, and also can be integrated in a module two or more unit.Above-mentioned integrated module both can adopt the form of hardware to realize, and also can adopt the form of software function module to realize.If described integrated module usings that the form of software function module realizes and during as production marketing independently or use, also can be stored in a computer read/write memory medium.
The above-mentioned storage medium of mentioning can be ROM (read-only memory), disk or CD etc.
In the description of this instructions, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present utility model or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or feature can be with suitable mode combinations in any one or more embodiment or example.
Although illustrated and described embodiment of the present utility model, for the ordinary skill in the art, be appreciated that in the situation that not departing from principle of the present utility model and spirit and can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present utility model is by claims and be equal to and limit.

Claims (8)

1. a failure detector for electric pressure cooking saucepan, is characterized in that, comprising:
Pressure transducer, described pressure transducer detects the force value in electric pressure cooking saucepan; And
Controller, described controller is connected with described pressure transducer, and when described force value is less than the first preset value or is greater than the second preset value, described controller judges described pressure sensor failure, and wherein, described the second preset value is greater than described the first preset value.
2. the failure detector of electric pressure cooking saucepan as claimed in claim 1, is characterized in that, also comprises:
Display, described display is connected with described controller, when described controller judges described pressure sensor failure described in display show failure message.
3. the failure detector of electric pressure cooking saucepan as claimed in claim 1 or 2, is characterized in that, also comprises:
Prompting device, described prompting device is connected with described controller, when described controller judges described pressure sensor failure described in prompting device send alarm.
4. the failure detector of electric pressure cooking saucepan as claimed in claim 3, is characterized in that, described prompting device is hummer.
5. the failure detector of electric pressure cooking saucepan as claimed in claim 2, is characterized in that, described display is liquid crystal display.
6. the failure detector of electric pressure cooking saucepan as claimed in claim 1, is characterized in that, described controller comprises the peripheral circuit of control chip and control chip, and wherein, the peripheral circuit of described control chip comprises:
The first resistance, one end of described the first resistance is connected with the output terminal of described pressure transducer, the other end ground connection of described the first resistance;
The first diode, described the first diode is in parallel with described the first resistance, the plus earth of described the first diode, the negative electrode of described the first diode is connected with one end of described the first resistance;
The second diode, described the second diode is connected with described the first diode, and the anode of described the second diode is connected with the negative electrode of described the first diode, and the negative electrode of described the second diode is connected with default power supply;
The first electric capacity and second resistance of series connection, one end ground connection of described the first electric capacity, the other end of described the first electric capacity is connected respectively with one end of described the second resistance with described control chip, and the other end of described the second resistance is connected with one end of described the first resistance.
7. the failure detector of electric pressure cooking saucepan as claimed in claim 1, it is characterized in that, when described force value is more than or equal to described the first preset value and is less than or equal to described the second preset value, described controller judges that described pressure transducer is normal, and controls described electric pressure cooking saucepan and carry out work.
8. an electric pressure cooking saucepan, is characterized in that, comprises the failure detector of the electric pressure cooking saucepan as described in claim 1-7 any one.
CN201320544955.4U 2013-09-02 2013-09-02 Electric pressure cooker and fault detection device thereof Expired - Fee Related CN203455136U (en)

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CN201320544955.4U CN203455136U (en) 2013-09-02 2013-09-02 Electric pressure cooker and fault detection device thereof

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Application Number Priority Date Filing Date Title
CN201320544955.4U CN203455136U (en) 2013-09-02 2013-09-02 Electric pressure cooker and fault detection device thereof

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104422562A (en) * 2013-09-02 2015-03-18 美的集团股份有限公司 Electric pressure cooker and failure detecting device and method thereof
CN109211077A (en) * 2017-06-30 2019-01-15 佛山市顺德区美的电热电器制造有限公司 Fault detection means and cooking apparatus are installed
CN110500710A (en) * 2019-07-30 2019-11-26 广东申菱环境系统股份有限公司 A kind of air-conditioning fault self-diagnosis method
CN110763382A (en) * 2019-11-14 2020-02-07 上海权宥环保科技有限公司 Pressure transmitter

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104422562A (en) * 2013-09-02 2015-03-18 美的集团股份有限公司 Electric pressure cooker and failure detecting device and method thereof
CN109211077A (en) * 2017-06-30 2019-01-15 佛山市顺德区美的电热电器制造有限公司 Fault detection means and cooking apparatus are installed
CN110500710A (en) * 2019-07-30 2019-11-26 广东申菱环境系统股份有限公司 A kind of air-conditioning fault self-diagnosis method
CN110500710B (en) * 2019-07-30 2021-07-20 广东申菱环境系统股份有限公司 Air conditioner fault self-diagnosis method
CN110763382A (en) * 2019-11-14 2020-02-07 上海权宥环保科技有限公司 Pressure transmitter

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