CN110416984A - Compressor protection circuit, compressor and air conditioner - Google Patents
Compressor protection circuit, compressor and air conditioner Download PDFInfo
- Publication number
- CN110416984A CN110416984A CN201910674994.8A CN201910674994A CN110416984A CN 110416984 A CN110416984 A CN 110416984A CN 201910674994 A CN201910674994 A CN 201910674994A CN 110416984 A CN110416984 A CN 110416984A
- Authority
- CN
- China
- Prior art keywords
- compressor
- temperature
- compressor controller
- protection circuit
- controller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000002401 inhibitory effect Effects 0.000 claims abstract description 4
- 238000004146 energy storage Methods 0.000 claims description 34
- 230000001681 protective effect Effects 0.000 claims description 12
- 239000003507 refrigerant Substances 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 230000002829 reductive effect Effects 0.000 claims description 4
- 239000003990 capacitor Substances 0.000 claims description 3
- 230000007774 longterm Effects 0.000 abstract description 10
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 8
- 230000006870 function Effects 0.000 description 6
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
- H02H9/025—Current limitation using field effect transistors
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Power Engineering (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The invention relates to a compressor protection circuit, a compressor and an air conditioner, wherein the protection circuit comprises: the starting protection circuit is connected with the compressor controller and used for inhibiting surge current at the moment of starting the compressor; and/or the temperature protection circuit is used for detecting the real-time temperature of the environment where the compressor controller is located and adjusting the temperature of the compressor controller according to the real-time temperature so as to keep the temperature of the compressor controller below the critical upper limit temperature of normal operation. According to the technical scheme provided by the invention, the performance of the compressor controller is improved, the service life of the compressor controller is prolonged and the long-term reliable operation of the compressor is ensured by starting the protection circuit and/or the temperature protection circuit.
Description
Technical field
The present invention relates to Compressor Technology fields, and in particular to a kind of compressor protective circuit, compressor and air conditioner.
Background technique
Frequency-changeable compressor can generate biggish surge current due to voltage jump in energization starting moment, and high current can rush
Compressor controller internal component is hit, whole EMI performance is influenced and even other household electrical appliances is interfered.And compressor exists for a long time
When running under bad working environments, temperature can be steeply risen, and high temperature will affect controller internal power module performance.
Summary of the invention
To be overcome the problems, such as present in the relevant technologies at least to a certain extent, the present invention provides a kind of compressor protection electricity
Road, compressor and air conditioner, with the surge current generated when solving compressor start in the prior art, and/or, when compressing captain
Between hot operation, the problem of will affect compressor performance.
According to a first aspect of the embodiments of the present invention, a kind of compressor protective circuit is provided, comprising:
Starting protection circuit, the starting protection circuit is connected with compressor controller, for inhibiting compressor start wink
Between surge current；And/or
Temperature protection circuit, the real-time temperature of environment where the temperature protection circuit is used to detect the compressor controller
It spends, and adjusts the temperature of the compressor controller according to the real time temperature, so that the temperature of the compressor controller is protected
It holds below the critical upper limit temperature of normal work.
Preferably, the starting protection circuit, comprising:
Energy storage device, the energy storage device are connected with the compressor controller；
First circuit, first circuit are used to be powered moment in compressor, and source current water conservancy diversion is filled to the energy storage
It sets；
Second servo loop, the second servo loop is used under the control for the electricity that the energy storage device stores, by source current
Water conservancy diversion is to load.
Preferably, current-limiting impedance is provided on first circuit；
Power switch is provided on the second servo loop, the power switch is connected with load；
The power switch is connected in parallel on the both ends of the current-limiting impedance, and the control terminal of the power switch and the energy storage fill
It sets connected；Current-limiting impedance described in the impedance < of the power switch.
Preferably, the starting protection circuit, further includes:
Voltage feedback circuit, the voltage feedback circuit are connected to the control terminal of the energy storage device Yu the power switch
Between；
The voltage feedback circuit, the voltage for storing in the energy storage device reach the electric conduction of the power switch
When pressure, controls the power switch and open.
Preferably, the temperature protection circuit, comprising:
Temperature sensor, the real time temperature of environment where the temperature sensor is used to detect the compressor controller,
And it is sent to the compressor controller；
The compressor controller is specifically used for the revolving speed of compressor being controlled, so that the pressure according to the real time temperature
The temperature of contracting machine controller is maintained at the critical upper limit temperature of normal work or less.
Preferably, the compressor controller is specifically used for being higher than the compressor controller just in the real time temperature
When the critical upper limit temperature often to work, the revolving speed of the compressor is reduced, so that the temperature of the compressor controller is maintained at
Below the critical upper limit temperature of normal work.
Preferably, the temperature protection circuit, further includes:
By-passing valve, the by-passing valve are connected between the compressor controller and compressor；
The compressor controller, is also used to according to the real time temperature, controls the cold of compressor by adjusting by-passing valve
The soakage of matchmaker, so that the temperature of the compressor controller is maintained at the critical upper limit temperature of normal work or less.
Preferably, the compressor controller is specifically used for being higher than the compressor controller just in the real time temperature
When the critical upper limit temperature often to work, the refrigerant soakage of compressor is increased by adjusting by-passing valve, so that the compressor control
Device processed cools to the critical upper limit temperature of normal work or less.
Preferably, the temperature protection circuit, further includes:
Analog-digital converter, the analog-digital converter are connected between the temperature sensor and compressor controller, are used for
The temperature analog signal that the temperature sensor acquires is converted into temperature digital signal.
Preferably, the energy storage device is storage capacitor.
According to a second aspect of the embodiments of the present invention, a kind of compressor is provided, comprising:
Above-mentioned compressor protective circuit.
According to a third aspect of the embodiments of the present invention, a kind of air conditioner is provided, comprising:
Above-mentioned compressor.
The technical solution that the embodiment of the present invention provides can include the following benefits:
Since starting protection circuit is able to suppress the surge current of compressor start moment, it ensure that compressor controller is long
Phase reliability service improves compressor controller electromagnetic interference performance and component service life；
The real time temperature of environment where being able to detect compressor controller due to temperature protection circuit, and according to described real-time
Temperature adjust compressor controller temperature, make the temperature of compressor controller be maintained at the critical upper limit temperature of normal work with
Under, the working environment of compressor controller is optimized, the performance of compressor controller is improved；
Technical solution provided by the invention improves compressor by starting protection circuit and/or temperature protection circuit
The performance of controller extends the service life of compressor controller, ensure that compressor is run reliably and with long-term.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
It can the limitation present invention.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows and meets implementation of the invention
Example, and be used to explain the principle of the present invention together with specification.
Fig. 1 is a kind of schematic block diagram of compressor protective circuit shown according to an exemplary embodiment；
Fig. 2 is a kind of schematic block diagram of the compressor protective circuit shown according to another exemplary embodiment.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistented with the present invention.On the contrary, they be only with it is such as appended
The example of device and method being described in detail in claims, some aspects of the invention are consistent.
Fig. 1 is a kind of schematic block diagram of compressor protective circuit shown according to an exemplary embodiment, as shown in Figure 1,
The circuit includes:
Starting protection circuit 1, the starting protection circuit 1 is connected with compressor controller, for inhibiting compressor start
The surge current of moment；And/or
Temperature protection circuit 2, environment is real-time where the temperature protection circuit 2 is used to detect the compressor controller
Temperature, and the temperature of the compressor controller is adjusted according to the real time temperature, so that the temperature of the compressor controller
It is maintained at the critical upper limit temperature of normal work or less.
It is understood that this compressor protective circuit provided in this embodiment, can both only have starting protection circuit,
Can also there was only temperature protection circuit, can also there is starting protection circuit and temperature protection circuit simultaneously.Specifically can according to
Family needs and compressor operating environment is configured.
It is understood that surge current refers to that power supply connects moment, the peak point current of power-supply device is flowed into.Surge current pair
The safety of supply network and electrical equipment has significant impact.Therefore, technical solution provided in this embodiment is protected by setting starting
Protection circuit inhibits the surge current of compressor start moment, is of great significance to ensureing that compressor is safely operated.
It is understood that the real time temperature of environment is equivalent to the temperature of compressor controller where compressor controller
Degree, pass through detection compressor controller where environment real time temperature, it will be appreciated that the temperature of compressor controller whether mistake
Height is adjusted if excessively high by temperature protection circuit, excessively high to avoid temperature, influences compressor controller internal power
Module performance.
It is understood that ensure that since starting protection circuit is able to suppress the surge current of compressor start moment
Compressor controller is run reliably and with long-term, improves compressor controller electromagnetic interference performance and component service life；
The real time temperature of environment where being able to detect compressor controller due to temperature protection circuit, and according to described real-time
Temperature adjust compressor controller temperature, make the temperature of compressor controller be maintained at the critical upper limit temperature of normal work with
Under, the working environment of compressor controller is optimized, the performance of compressor controller is improved；
Technical solution provided in this embodiment improves compression by starting protection circuit and/or temperature protection circuit
The performance of machine controller extends the service life of compressor controller, ensure that compressor is run reliably and with long-term.
Preferably, the starting protection circuit 1, comprising:
Energy storage device 11, the energy storage device 11 are connected with the compressor controller；
First circuit, first circuit are used to be powered moment in compressor, and source current water conservancy diversion is filled to the energy storage
Set 11；
Second servo loop, the second servo loop are used under the control for the electricity that the energy storage device 11 stores, by power supply electricity
Conductance stream is to load.
Preferably, the energy storage device 11 is storage capacitor.
Preferably, current-limiting impedance 12 is provided on first circuit；
Power switch 13 is provided on the second servo loop, the power switch 13 is connected with load；
The power switch 13 is connected in parallel on the both ends of the current-limiting impedance 12, the control terminal of the power switch 13 with it is described
Energy storage device 11 is connected；Current-limiting impedance 12 described in the impedance < of the power switch 13.
It is understood that source current charges through the first circuit to energy storage device when compressor start is powered.Work as energy storage
The voltage of device storage reaches on second servo loop after power switch conducting voltage, and power switch is opened.Since power switch hinders
The anti-current-limiting impedance lower than on the first circuit, electric current, which changes from second servo loop, flows to energy storage device, and after being turned, electric current only flows
To second servo loop.Since power switch is connected with load, power switch flow direction load of the electric current through second servo loop is (for example, compression
Machine), at this moment load is just started to work, it is suppressed that the surge current for the starting moment that is powered.
Preferably, the starting protection circuit 1, further includes:
Voltage feedback circuit 14, the voltage feedback circuit 14 are connected to the energy storage device 11 and the power switch 13
Control terminal between；
The voltage feedback circuit 14, the voltage for storing in the energy storage device 11 reach the power switch 13
When conducting voltage, controls the power switch 13 and open.
It is understood that controlling the opening and closing of power switch by power feedback, control is more accurate, so that
The reliability of entire circuit is higher.
Preferably, the temperature protection circuit 2, comprising:
Temperature sensor 21, the real-time temperature of environment where the temperature sensor 21 is used to detect the compressor controller
Degree, and it is sent to the compressor controller；
The compressor controller is specifically used for the revolving speed of compressor being controlled, so that the pressure according to the real time temperature
The temperature of contracting machine controller is maintained at the critical upper limit temperature of normal work or less.
Preferably, the compressor controller is specifically used for being higher than the compressor controller just in the real time temperature
When the critical upper limit temperature often to work, the revolving speed of the compressor is reduced, so that the temperature of the compressor controller is maintained at
Below the critical upper limit temperature of normal work.
Preferably, the temperature protection circuit 2, further includes:
By-passing valve 22, the by-passing valve 22 are connected between the compressor controller and compressor；
The compressor controller, is also used to according to the real time temperature, controls the cold of compressor by adjusting by-passing valve
The soakage of matchmaker, so that the temperature of the compressor controller is maintained at the critical upper limit temperature of normal work or less.
Preferably, the compressor controller is specifically used for being higher than the compressor controller just in the real time temperature
When the critical upper limit temperature often to work, the refrigerant soakage of compressor is increased by adjusting by-passing valve, so that the compressor control
Device processed cools to the critical upper limit temperature of normal work or less.
Preferably, the temperature protection circuit 2, further includes:
Analog-digital converter 23, the analog-digital converter 23 be connected to the temperature sensor 21 and compressor controller it
Between, the temperature analog signal for acquiring the temperature sensor 21 is converted to temperature digital signal.
It is understood that the real time temperature of environment where temperature sensor detection compressor controller, when temperature is close
When the critical upper limit temperature of the normal work of compressor controller, compressor controller issues signal to compressor, reduces revolving speed.
In addition, the by-passing valve of compressor can also be controlled in order to preferably control the temperature of compressor controller, make to suck compressor
Refrigerant is greater than discharge refrigerant, and refrigerant flows through controller heat sink, makes the reduction of compressor controller temperature.
It is understood that the real time temperature of environment is equivalent to the temperature of compressor controller where compressor controller
Degree, pass through detection compressor controller where environment real time temperature, it will be appreciated that the temperature of compressor controller whether mistake
Height is adjusted if excessively high by temperature protection circuit, excessively high to avoid temperature, influences compressor controller internal power
Module performance.
Fig. 2 is a kind of schematic block diagram of the compressor protective circuit shown according to another exemplary embodiment, such as Fig. 2 institute
Show, which includes:
Energy storage device 11, the energy storage device 11 are connected with the compressor controller；
First circuit, first circuit are used to be powered moment in compressor, and source current water conservancy diversion is filled to the energy storage
Set 11；
Second servo loop, the second servo loop are used under the control for the electricity that the energy storage device 11 stores, by power supply electricity
Conductance stream is to load；
Current-limiting impedance 12 is provided on first circuit；
Power switch 13 is provided on the second servo loop, the power switch 13 is connected with load；
The power switch 13 is connected in parallel on the both ends of the current-limiting impedance 12, the control terminal of the power switch 13 with it is described
Energy storage device 11 is connected；Current-limiting impedance 12 described in the impedance < of the power switch 13；
Voltage feedback circuit 14 is connected between the energy storage device 11 and the control terminal of the power switch 13；
The voltage feedback circuit 14, the voltage for storing in the energy storage device 11 reach the power switch 13
When conducting voltage, controls the power switch 13 and open；
Temperature sensor 21 for the real time temperature of environment where detecting the compressor controller, and is sent to described
Compressor controller；
The compressor controller, specifically for being higher than what the compressor controller worked normally in the real time temperature
When critical upper limit temperature, the revolving speed of the compressor is reduced, so that the temperature of the compressor controller is maintained at normal work
Critical upper limit temperature below；
By-passing valve 22 is connected between the compressor controller and compressor；
The compressor controller, specifically for being higher than what the compressor controller worked normally in the real time temperature
When critical upper limit temperature, the refrigerant soakage of compressor is increased by adjusting by-passing valve, so that the compressor controller cools down
To below the critical upper limit temperature of normal work；
Analog-digital converter 23 is connected between the temperature sensor 21 and compressor controller, is used for the temperature
The temperature analog signal that sensor 21 acquires is converted to temperature digital signal.
It is understood that ensure that since starting protection circuit is able to suppress the surge current of compressor start moment
Compressor controller is run reliably and with long-term, improves compressor controller electromagnetic interference performance and component service life；
The real time temperature of environment where being able to detect compressor controller due to temperature protection circuit, and according to described real-time
Temperature adjust compressor controller temperature, make the temperature of compressor controller be maintained at the critical upper limit temperature of normal work with
Under, the working environment of compressor controller is optimized, the performance of compressor controller is improved；
Technical solution provided in this embodiment improves compressor control by starting protection circuit and temperature protection circuit
The performance of device processed extends the service life of compressor controller, ensure that compressor is run reliably and with long-term.
A kind of compressor shown according to another exemplary embodiment, comprising:
Above-mentioned compressor protective circuit.
It is understood that ensure that since starting protection circuit is able to suppress the surge current of compressor start moment
Compressor controller is run reliably and with long-term, improves compressor controller electromagnetic interference performance and component service life；
The real time temperature of environment where being able to detect compressor controller due to temperature protection circuit, and according to described real-time
Temperature adjust compressor controller temperature, make the temperature of compressor controller be maintained at the critical upper limit temperature of normal work with
Under, the working environment of compressor controller is optimized, the performance of compressor controller is improved；
Technical solution provided in this embodiment improves compression by starting protection circuit and/or temperature protection circuit
The performance of machine controller extends the service life of compressor controller, ensure that compressor is run reliably and with long-term.
A kind of air conditioner shown according to another exemplary embodiment, comprising:
Above-mentioned compressor.
It is understood that ensure that since starting protection circuit is able to suppress the surge current of compressor start moment
Compressor controller is run reliably and with long-term, improves compressor controller electromagnetic interference performance and component service life；
The real time temperature of environment where being able to detect compressor controller due to temperature protection circuit, and according to described real-time
Temperature adjust compressor controller temperature, make the temperature of compressor controller be maintained at the critical upper limit temperature of normal work with
Under, the working environment of compressor controller is optimized, the performance of compressor controller is improved；
Technical solution provided in this embodiment improves compression by starting protection circuit and/or temperature protection circuit
The performance of machine controller extends the service life of compressor controller, ensure that compressor is run reliably and with long-term.
It is understood that same or similar part can mutually refer in the various embodiments described above, in some embodiments
Unspecified content may refer to the same or similar content in other embodiments.
It should be noted that in the description of the present invention, term " first ", " second " etc. are used for description purposes only, without
It can be interpreted as indication or suggestion relative importance.In addition, in the description of the present invention, unless otherwise indicated, the meaning of " multiple "
Refer at least two.
Any process described otherwise above or method description are construed as in flow chart or herein, and expression includes
It is one or more for realizing specific logical function or process the step of executable instruction code module, segment or portion
Point, and the range of the preferred embodiment of the present invention includes other realization, wherein can not press shown or discussed suitable
Sequence, including according to related function by it is basic simultaneously in the way of or in the opposite order, Lai Zhihang function, this should be of the invention
Embodiment person of ordinary skill in the field understood.
It should be appreciated that each section of the invention can be realized with hardware, software, firmware or their combination.Above-mentioned
In embodiment, software that multiple steps or method can be executed in memory and by suitable instruction execution system with storage
Or firmware is realized.It, and in another embodiment, can be under well known in the art for example, if realized with hardware
Any one of column technology or their combination are realized: having a logic gates for realizing logic function to data-signal
Discrete logic, with suitable combinational logic gate circuit specific integrated circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
Those skilled in the art are understood that realize all or part of step that above-described embodiment method carries
It suddenly is that relevant hardware can be instructed to complete by program, the program can store in a kind of computer-readable storage medium
In matter, which when being executed, includes the steps that one or a combination set of embodiment of the method.
It, can also be in addition, each functional unit in each embodiment of the present invention can integrate in a processing module
It is that each unit physically exists alone, can also be integrated in two or more units in a module.Above-mentioned integrated mould
Block both can take the form of hardware realization, can also be realized in the form of software function module.The integrated module is such as
Fruit is realized and when sold or used as an independent product in the form of software function module, also can store in a computer
In read/write memory medium.
Storage medium mentioned above can be read-only memory, disk or CD etc..
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiment or examples in can be combined in any suitable manner.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (12)
1. a kind of compressor protective circuit characterized by comprising
Starting protection circuit, the starting protection circuit is connected with compressor controller, for inhibiting compressor start moment
Surge current；And/or
Temperature protection circuit, the real time temperature of environment where the temperature protection circuit is used to detect the compressor controller,
And the temperature of the compressor controller is adjusted according to the real time temperature, so that the temperature of the compressor controller is maintained at
Below the critical upper limit temperature of normal work.
2. circuit according to claim 1, which is characterized in that the starting protection circuit, comprising:
Energy storage device, the energy storage device are connected with the compressor controller；
First circuit, first circuit are used to be powered moment in compressor, give source current water conservancy diversion to the energy storage device；
Second servo loop, the second servo loop is used under the control for the electricity that the energy storage device stores, by source current water conservancy diversion
To load.
3. circuit according to claim 2, which is characterized in that
Current-limiting impedance is provided on first circuit；
Power switch is provided on the second servo loop, the power switch is connected with load；
The power switch is connected in parallel on the both ends of the current-limiting impedance, the control terminal of the power switch and the energy storage device phase
Even；Current-limiting impedance described in the impedance < of the power switch.
4. circuit according to claim 3, which is characterized in that the starting protection circuit, further includes:
Voltage feedback circuit, the voltage feedback circuit be connected to the energy storage device and the power switch control terminal it
Between；
The voltage feedback circuit, the voltage for storing in the energy storage device reach the conducting voltage of the power switch
When, it controls the power switch and opens.
5. circuit according to claim 1, which is characterized in that the temperature protection circuit, comprising:
Temperature sensor, the real time temperature of environment where the temperature sensor is used to detect the compressor controller, concurrently
Give the compressor controller；
The compressor controller is specifically used for the revolving speed of compressor being controlled, so that the compressor according to the real time temperature
The temperature of controller is maintained at the critical upper limit temperature of normal work or less.
6. circuit according to claim 5, which is characterized in that
The compressor controller, specifically for being higher than the critical of compressor controller normal work in the real time temperature
When ceiling temperature, the revolving speed of the compressor is reduced, so that the temperature of the compressor controller is maintained at facing for normal work
Below boundary's ceiling temperature.
7. circuit according to claim 5, which is characterized in that the temperature protection circuit, further includes:
By-passing valve, the by-passing valve are connected between the compressor controller and compressor；
The compressor controller, is also used to according to the real time temperature, controls the refrigerant of compressor by adjusting by-passing valve
Soakage, so that the temperature of the compressor controller is maintained at the critical upper limit temperature of normal work or less.
8. circuit according to claim 7, which is characterized in that
The compressor controller, specifically for being higher than the critical of compressor controller normal work in the real time temperature
When ceiling temperature, the refrigerant soakage of compressor is increased by adjusting by-passing valve, so that the compressor controller cools to just
Below the critical upper limit temperature often to work.
9. circuit according to claim 5, which is characterized in that the temperature protection circuit, further includes:
Analog-digital converter, the analog-digital converter are connected between the temperature sensor and compressor controller, are used for institute
The temperature analog signal for stating temperature sensor acquisition is converted to temperature digital signal.
10. circuit according to claim 2, which is characterized in that
The energy storage device is storage capacitor.
11. a kind of compressor characterized by comprising
The described in any item compressor protective circuits of claim 1~10.
12. a kind of air conditioner characterized by comprising
Compressor described in claim 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910674994.8A CN110416984A (en) | 2019-07-25 | 2019-07-25 | Compressor protection circuit, compressor and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910674994.8A CN110416984A (en) | 2019-07-25 | 2019-07-25 | Compressor protection circuit, compressor and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110416984A true CN110416984A (en) | 2019-11-05 |
Family
ID=68362983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910674994.8A Pending CN110416984A (en) | 2019-07-25 | 2019-07-25 | Compressor protection circuit, compressor and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110416984A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002050477A1 (en) * | 2000-12-18 | 2002-06-27 | Choi, Yoon-Sik | Controller for a inrush current of air-conditioner compressor and thereof controlling method |
| CN1390381A (en) * | 1999-11-12 | 2003-01-08 | Lg电子株式会社 | Device and method for controlling supply of current and static capacitance to compressor |
| CN201486834U (en) * | 2009-09-04 | 2010-05-26 | 大连三洋压缩机有限公司 | Assistant starting and protecting device of single-phase compressor |
| CN101893310A (en) * | 2010-08-31 | 2010-11-24 | 四川长虹空调有限公司 | Control method for preventing overload of compressor under heating mode of heat pump air conditioner |
| CN106438317A (en) * | 2016-11-10 | 2017-02-22 | 广东美的制冷设备有限公司 | Air conditioner compressor control circuit, air conditioner compressor control method and air conditioner |
| CN210111598U (en) * | 2019-07-25 | 2020-02-21 | 珠海凌达压缩机有限公司 | Compressor protection circuit, compressor and air conditioner |
-
2019
- 2019-07-25 CN CN201910674994.8A patent/CN110416984A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1390381A (en) * | 1999-11-12 | 2003-01-08 | Lg电子株式会社 | Device and method for controlling supply of current and static capacitance to compressor |
| WO2002050477A1 (en) * | 2000-12-18 | 2002-06-27 | Choi, Yoon-Sik | Controller for a inrush current of air-conditioner compressor and thereof controlling method |
| CN201486834U (en) * | 2009-09-04 | 2010-05-26 | 大连三洋压缩机有限公司 | Assistant starting and protecting device of single-phase compressor |
| CN101893310A (en) * | 2010-08-31 | 2010-11-24 | 四川长虹空调有限公司 | Control method for preventing overload of compressor under heating mode of heat pump air conditioner |
| CN106438317A (en) * | 2016-11-10 | 2017-02-22 | 广东美的制冷设备有限公司 | Air conditioner compressor control circuit, air conditioner compressor control method and air conditioner |
| CN210111598U (en) * | 2019-07-25 | 2020-02-21 | 珠海凌达压缩机有限公司 | Compressor protection circuit, compressor and air conditioner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105065277B (en) | Compressor and the diagnostic system for compressor | |
| US9479108B2 (en) | Electric compressor | |
| CN104347446B (en) | Temperature monitoring and control in semiconductor structure | |
| WO2005045330A3 (en) | Refrigerant cycle with operating range extension | |
| US20080129116A1 (en) | System and method for providing power and control through a rotating interface | |
| CN106679076B (en) | Temperature control method and control device for frequency converter power module | |
| CN108370153A (en) | The power controller of self adaptive control with switching circuit | |
| CN104967301B (en) | Voltage swells protective device, the method for pfc circuit in frequency-conversion domestic electric appliances equipment | |
| CN105546760B (en) | Compressor control method, device and the air conditioner of air conditioner | |
| CN104534619B (en) | The control method and control device of frequency conversion dehumidifier | |
| CN101953041B (en) | Module for controlling a switch in a high voltage electrical substation | |
| CN104600973B (en) | The control method and control device of interleaved PFC circuit in air conditioner | |
| CN110416984A (en) | Compressor protection circuit, compressor and air conditioner | |
| CN106469628B (en) | For the protection control method of relay, device | |
| CN103441709A (en) | Start control system of compressor and refrigeration equipment with same | |
| US9843279B2 (en) | Phase current detection system | |
| CN210111598U (en) | Compressor protection circuit, compressor and air conditioner | |
| CN106715904B (en) | Method for detecting incorrect opening of suction valve of multi-suction reciprocating compressor | |
| CN108120224A (en) | A kind of fault cues method, apparatus and refrigerator based on LED illumination lamp | |
| CN109236627A (en) | Compressor protection circuit, circuit system and air conditioner | |
| CN105552848A (en) | Overheat protection circuit and motor control apparatus | |
| CN106786394B (en) | Interlock protection circuit | |
| CN205544222U (en) | Over -temperature protection circuits and motor control means | |
| US11916372B2 (en) | Motor protection device | |
| CN108023403A (en) | Method and apparatus for preventing the erroneous trigger to the turn-off function of process control parts |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |