CN208950836U - Compressor protective circuit, circuit system and air conditioner - Google Patents
Compressor protective circuit, circuit system and air conditioner Download PDFInfo
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- CN208950836U CN208950836U CN201821480132.9U CN201821480132U CN208950836U CN 208950836 U CN208950836 U CN 208950836U CN 201821480132 U CN201821480132 U CN 201821480132U CN 208950836 U CN208950836 U CN 208950836U
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Abstract
The utility model relates to a kind of compressor protective circuit, circuit system and air conditioner, the compressor protective circuit includes: protective module and major loop control module；The protective module is arranged in the control loop of compressor major loop, generates control signal for controlling the control loop；The major loop control module is arranged on compressor major loop, for controlling the closing or opening of the compressor major loop according to the control signal.The utility model utilizes the lesser feature of electric current in the control loop of compressor major loop; protective module is arranged in the control loop of compressor major loop; and the working condition of compressor is controlled in time according to monitoring parameters, to realize the protection to compressor.Compressor protective circuit described in the utility model is suitable for high-power and baby compressor, has wide range of applications.
Description
Technical field
The utility model relates to protecting circuit for electrical equipment technical fields, and in particular to a kind of compressor protective circuit, electricity
Road system and air conditioner.
Background technique
In the inside of air conditioner, it is designed with compressor protective circuit mostly, exists in the prior art by supplying compressor
To play the protective effect to compressor, this protection circuit does not account for environment temperature for the detection of electrical circuit electric current, only
The electric current of compressor is detected, as long as electric current fails beyond rated current, protection circuit will not be acted.Due to by environment temperature
The actual temperature of the influence of degree, compressor may exceed maximum allowable temperature value, at this time if compressor start, starting current
Generally at 7~8 times of rated current, therefore compressor since temperature is excessively high it is possible to be burned out.
Furthermore, it is possible to which temperature limiter is connected on compressor major loop, compressor temperature is incuded by temperature limiter, and when pressure
When contracting machine temperature is higher than maximum allowable temperature value, major loop is disconnected, to realize the protection to compressor.But for big function
The compressor of rate, operating current is larger, and the rated current of temperature limiter is generally lower, can not make on powerful compressor
With.
Utility model content
In view of this, providing a kind of compressor protection electricity the purpose of the utility model is to overcome the deficiencies in the prior art
Road, circuit system and air conditioner.
In order to achieve the above object, the utility model adopts the following technical solution: a kind of compressor protective circuit, comprising:
Protective module is arranged in the control loop of compressor major loop, generates control for controlling the control loop
Signal；
Major loop control module is arranged on compressor major loop, for controlling the compression according to the control signal
The closing or opening in owner circuit.
Optionally, the major loop control module are as follows: the contactor on the compressor major loop is set.
Optionally, the protective module is temperature limiter.
Optionally, the control signal is the signal that the control loop generates when open or closed；
The temperature limiter fixation is located on compressor exhaust pipe；
The temperature information of the temperature limiter real-time detection compressor exhaust pipe, and when the temperature information is greater than or equal to temperature
When spending threshold value, the control loop is disconnected；When the temperature information is less than temperature threshold, the control loop is connected.
Optionally, the temperature limiter includes temperature-sensing element (device), and the temperature-sensing element (device) is thermosensitive bimetal.
Optionally, the protective module includes: temperature sensor and controller；
The major loop control module includes: electronic switch；
The temperature sensor fixation is located on compressor exhaust pipe；
The electronic switch is connected in series on compressor major loop；
The controller can control connecing for the electronic switch according to the temperature information that the temperature sensor detects
On-off is opened.
Optionally, the controller can control the electronic cutting according to the temperature information that the temperature sensor detects
What is closed is switched on or switched off, comprising:
When the temperature information is greater than or equal to temperature threshold, the controller controls the electronic switch and disconnects；
When the temperature information is less than temperature threshold, the controller controls the electronic switch and connects.
The utility model additionally provides a kind of circuit system, comprising:
Compressor, major loop, control loop, and, such as the described in any item compressor protective circuits in front；
The compressor and the control loop are connect with the major loop respectively.
Optionally, the major loop is compressor power supply；
The common terminal of the compressor is connect with one end of the major loop；
After the starting terminals of the compressor are connected with the start-up capacitance of the compressor, the operation with the compressor
Terminals are simultaneously tied, then are connect with the other end of the major loop.
The utility model additionally provides a kind of air conditioner, comprising: such as the described in any item circuit systems in front.
The utility model uses above technical scheme, and the compressor protective circuit includes: protective module and major loop control
Molding block；The protective module is arranged in the control loop of compressor major loop, generates control for controlling the control loop
Signal processed；The major loop control module is arranged on compressor major loop, for controlling the pressure according to the control signal
The closing or opening in contracting owner circuit.The utility model utilizes the lesser spy of electric current in the control loop of compressor major loop
Point protective module is arranged in the control loop of compressor major loop, and according to monitoring parameters in time to the work of compressor
State is controlled, to realize the protection to compressor.Compressor protective circuit described in the utility model is suitable for high-power
And baby compressor, it has wide range of applications.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of compressor protective circuit embodiment one provided by the utility model；
Fig. 2 is the structural schematic diagram of compressor protective circuit embodiment two provided by the utility model；
Fig. 3 is the structural schematic diagram of compressor protective circuit embodiment three provided by the utility model；
Fig. 4 is the structural schematic diagram of circuit system embodiment one provided by the utility model.
In figure: 1, protective module；2, major loop control module；3, major loop；4, control loop；5, compressor；6, it contacts
Device；7, temperature limiter；8, temperature sensor；9, controller；10, electronic switch.
Specific embodiment
To keep the purpose of this utility model, technical solution and advantage clearer, below by the technology to the utility model
Scheme is described in detail.Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not before making creative work
Obtained all other embodiment is put, the range that the utility model is protected is belonged to.
Fig. 1 is the structural schematic diagram of compressor protective circuit embodiment one provided by the utility model.
As shown in Figure 1, the protection circuit of compressor 5 described in the present embodiment includes:
Protective module 1 is arranged in the control loop 4 of compressor major loop 3, generates for controlling the control loop 4
Control signal；
Major loop control module 2 is arranged on compressor major loop 3, for controlling the pressure according to the control signal
The closing or opening in contracting owner circuit 3.
The protective module 1 can be temperature protection module 1, be also possible to overcurrent protection module 1 and similar voltage
Protective module 1 etc..
The protective module 1 of the present embodiment is arranged in the control loop 4 of compressor major loop, will protect in the prior art
3 mode of major loop that shield module 1 is set up directly on compressor is compared, and the present embodiment can be applied on powerful compressor.
Since powerful compressor operating electric current is larger, and most 1 rated current of protective module is lower, is unsuitable for being mounted on compression
On the major loop 3 of machine；Therefore, so that the existing protective module 1 being mounted on compressor major loop 3 only can be used in power compared with
On low compressor.The lesser feature of the electric current that the present embodiment is utilized in the control loop 4 of compressor major loop 3, will protect
Module 1 is arranged in the control loop 4 of compressor major loop 3, can be according to monitoring parameters (temperature or electric current etc.) in time to pressure
The working condition of contracting machine 5 is controlled, to realize the protection to compressor 5.
Fig. 2 is the structural schematic diagram of compressor protective circuit embodiment two provided by the utility model.
As shown in Fig. 2, compressor protective circuit described in the present embodiment includes:
Protective module 1 is arranged in the control loop 4 of compressor major loop 3, generates for controlling the control loop 4
Control signal；
Major loop control module 2 is arranged on compressor major loop 3, for controlling the pressure according to the control signal
The closing or opening in contracting owner circuit 3.
It should be noted that the compressor major loop 3 provides electric energy for the operating of compressor 5；The control loop 4 is used
In sending control signal to the compressor 5, to control the operating status of compressor 5.
Specifically, major loop control module described in the present embodiment 2 are as follows: connecing on the compressor major loop 3 is arranged in
Tentaculum 6.
Further, the protective module 1 is temperature limiter 7.
Further, the control signal is the signal that the control loop 4 generates when open or closed；
The fixation of temperature limiter 7 is located on 5 exhaust pipe of compressor；
The temperature information of 7 real-time detection compressor of temperature limiter, 5 exhaust pipe, and when the temperature information is greater than or equal to
When temperature threshold, the control loop 4 is disconnected；When the temperature information is less than temperature threshold, the control loop 4 is connected；
Further, the temperature limiter 7 includes temperature-sensing element (device), and the temperature-sensing element (device) is thermosensitive bimetal.
Further, the temperature information of 7 real-time detection compressor of temperature limiter, 5 exhaust pipe, and work as the temperature information
When more than or equal to temperature threshold, the signal control loop 4 of compressor 5 is disconnected；When the temperature information is less than temperature threshold,
Connect the signal control loop 4 of compressor 5, comprising:
The temperature limiter 7 detects the temperature information of 5 exhaust pipe of compressor using the thermosensitive bimetal, and works as the temperature
When spending information more than or equal to temperature threshold, the thermosensitive bimetal expanded by heating, by the signal control loop 4 of compressor 5
It disconnects；When the temperature information is less than temperature threshold, the thermosensitive bimetal is by cold events, by the signal control of compressor 5
Circuit 4 processed is connected.
Further, the contactor 6 be A.C. contactor, the A.C. contactor include: contactor coil and with it is described
Contactor coil passes through the contact of electromagnetism force-fitting；
One end of the temperature limiter 7 and one end of the contactor coil are connected in series；
The equal series connection of the other end of the other end and the contactor coil of the temperature limiter 7 is returned in the control of compressor 5
On road 4；
The contact is arranged on the major loop 3 of compressor 5.
When compressor 5 described in the present embodiment protects circuit work, 7 real-time detection compressor of temperature limiter, 5 exhaust pipe
Temperature information, and when the temperature information be greater than or equal to temperature threshold when, the control loop 4 is disconnected, due to the control
4 open circuit of circuit processed, leads to 6 coil losing electricity of contactor being connected in series with the temperature limiter 7 so that the contactor coil with
Magnetic force disappears between the contact, and the contact causes 3 open circuit of major loop of compressor 5 on the major loop 3 of compressor 5
Power supply can not power for compressor 5, and compressor 5 shuts down, to reach protecting effect.Compressor 5 shuts down one section
After time, the temperature of 5 exhaust pipe of compressor is gradually reduced, when the temperature for 5 exhaust pipe of compressor that 7 real-time detection of temperature limiter arrives
When spending information less than temperature threshold, the temperature limiter 7 can connect the control loop 4；Since the control loop 4 is connected, meeting
Obtain the contactor coil being connected in series with the temperature limiter 7 electric, so that depositing between the contactor coil and the contact
In magnetic force, under the attraction of magnetic force, the contactor 6 is attracted, and the major loop 3 of compressor 5 is connected, to make compressor 5
Power supply on major loop 3 can continue to power for compressor 5, and compressor 5 restores operating.
The present embodiment according to the temperature information of 5 exhaust pipe of compressor, and by the contactor 6 with setting in compression owner
The mutual cooperation between temperature limiter 7 on circuit 3, realizes the control of the operating status to compressor 5.The present embodiment will limit temperature
Device 7 is arranged in the control loop 4 of compressor major loop 3, can be according to the temperature of 5 exhaust pipe of compressor in time to compressor 5
Working condition controlled, to realize protection to compressor 5.Temperature limiter 7 described in the present embodiment is being controlled due to setting
On circuit 4 processed, even for high-power compressor, can also it play a protective role.
Fig. 3 is the structural schematic diagram of compressor protective circuit embodiment three provided by the utility model.
As shown in figure 3, compressor protective circuit described in the present embodiment includes:
Protective module 1 and major loop control module 2；
Wherein, the protective module 1 includes: temperature sensor 8 and controller 9；
The major loop control module 2 includes: electronic switch 10；
The fixation of temperature sensor 8 is located on 5 exhaust pipe of compressor；
The electronic switch 10 is connected in series on compressor major loop 3；
The controller 9 can control the electronic switch 10 according to the temperature information that the temperature sensor 8 detects
Be switched on or switched off.
Optionally, the controller 9 can control the electronics according to the temperature information that the temperature sensor 8 detects
Switch 10 is switched on or switched off, comprising:
When the temperature information is greater than or equal to temperature threshold, the controller 9 controls the electronic switch 10 and disconnects；
When the temperature information is less than temperature threshold, the controller 9 controls the electronic switch 10 and connects.
Protection circuit described in the present embodiment is believed by the temperature that the temperature sensor 8 detects 5 exhaust pipe of compressor
Breath sends temperature information to the controller 9, and the controller 9 judges when temperature information is greater than or equal to temperature threshold,
Control is located at the electronic switch 10 on the major loop 3 and disconnects, and to realize 3 open circuit of major loop, the power supply on major loop 3 is then
It cannot power for compressor 5, compressor 5 is out of service；Compressor 5 shut down after a period of time, 5 exhaust pipe of compressor
Cooling, the temperature sensor 8 send the temperature information of acquisition to the controller 9, when temperature information is less than temperature threshold
When, the controller 9 can control the connection of the electronic switch 10 on the major loop 3 to be made so that the major loop 3 is connected
Power supply on major loop 3 is the power supply of compressor 5, and compressor 5 brings into operation.
The present embodiment using temperature sensor 8, controller 9 in such a way that electronic switch 10 combines, according to compressor 5
Temperature regime realizes the control to 5 operating status of compressor, and the present embodiment realized using numerically controlled mode to compressor 5
Control, the temperature threshold is previously written in the controller 9；The control that the electronic switch 10 is switched on or switched off
What system and the controller 9 were determined according to the temperature information that the temperature sensor 8 detects.Guarantor described in the present embodiment
Protection circuit can be realized the protective effect to high-power compressor, and the circuit structure is simple, and stability is strong.
The utility model additionally provides a kind of embodiment of circuit system, comprising:
Compressor 5, major loop 3, control loop 4, and, such as the described in any item compressor protective circuits in front；
The compressor 5 and the control loop 4 are connect with the major loop 3 respectively.
Fig. 4 is the structural schematic diagram of circuit system embodiment one provided by the utility model.
As shown in figure 4, circuit system described in the present embodiment includes:
Compressor 5, major loop 3, control loop 4, and, the compressor protective circuit as described in any embodiment of front；
The compressor 5 and the control loop 4 are connect with the major loop 3 respectively；
Further, main circuit power is equipped in the major loop 3, the major loop 3 is that the operating of the compressor 5 mentions
For electric energy；
Control loop power supply also is provided in the control loop 4, the control loop power supply is the control loop 4 confession
Electricity；The control loop 4 is used to send control signal to the compressor 5, to control the operating status of compressor 5；
The common terminal (C-terminal) of the compressor 5 is connect with one end of the major loop 3；
Specifically, the common terminal of the compressor 5 connects zero curve；
After the starting terminals (end S) of the compressor 5 are connected with the start-up capacitance of the compressor 5, with the compression
The operation wiring end (end R) of machine 5 is simultaneously tied, then is connect with the other end of the major loop 3；
Specifically, the starting terminals of the compressor 5 connect firewire, the operation wiring end by the start-up capacitance
It starts to exchange fire line.
If the compressor 5 is additionally provided with ground terminal, which is directly grounded.
Circuit system described in the present embodiment, when compressor 5 starts, the temperature limiter 7 detects 5 exhaust pipe of compressor
Temperature information, when the temperature information is less than temperature threshold, the temperature limiter 7 can connect the control loop 4, make and the limit
The contactor coil that warm device 7 is connected in series obtain it is electric so that there are magnetic force between the contactor coil and the contact, in magnetic
Under the attraction of power, the contactor 6 is attracted, and the major loop 3 of compressor 5 is connected, and the power supply on the major loop 3 is compressor
5 power supplies, compressor 5 start running.After compressor 5 runs a period of time, if the compression that 7 real-time detection of the temperature limiter arrives
When the temperature information of 5 exhaust pipe of machine is greater than or equal to temperature threshold, the control loop 4 is disconnected, since the control loop 4 is disconnected
Road leads to the contactor coil power loss being connected in series with the temperature limiter 7 so that the contactor coil and the contact it
Between magnetic force disappear, the open circuit of major loop 3 of compressor 5 is caused the power supply on the major loop 3 of compressor 5 can not by the contact
For the power supply of compressor 5, compressor 5 shuts down, to reach protecting effect.Compressor 5 shut down after a period of time, compression
The temperature of 5 exhaust pipe of machine is gradually reduced, when 7 real-time detection of temperature limiter to the temperature information of 5 exhaust pipe of compressor be less than
When temperature threshold, the temperature limiter 7 can control the control loop 4 to connect compressor major loop 3, make compressor major loop 3
On power supply can continue to power for compressor 5, compressor 5 restores operating.
Circuit system described in the present embodiment, can be timely either to baby compressor still in high-power compressor
Play a protective role.
In addition, the utility model additionally provides a kind of air conditioner, comprising: circuit system as elucidated before.
The working principle of circuit system is referring to preceding embodiment in the air conditioner, and details are not described herein.
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 term " first ", " second " etc. are used for description purposes only in the description of the present invention,
It is not understood to indicate or imply relative importance.In addition, in the description of the present invention, unless otherwise indicated, it is " more
It is a " meaning 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 preferred embodiments of the present invention includes other realization, wherein can not be by shown or discussion
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 by this
The embodiment person of ordinary skill in the field of utility model is understood.
It should be appreciated that each section of the utility model can be realized with hardware, software, firmware or their combination.?
In above embodiment, what multiple steps or method can be executed in memory and by suitable instruction execution system with storage
Software or firmware are realized.It, and in another embodiment, can be with known in this field for example, if realized with hardware
Any one of following technology or their combination realize: there is the logic gate for realizing logic function to data-signal
The discrete logic of circuit, the specific integrated circuit with suitable combinational logic gate circuit, programmable gate array (PGA),
Field 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.
In addition, can integrate in a processing module in each functional unit in each embodiment of the utility model,
It can be each unit to physically exist alone, can also be integrated in two or more units in a module.It is above-mentioned integrated
Module both can take the form of hardware realization, can also be realized in the form of software function module.The integrated mould
If block is realized and when sold or used as an independent product in the form of software function module, it also can store and counted at one
In calculation machine 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 contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
Stating may not refer to the same embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be
It can be combined in any suitable manner in any one or more embodiment or examples.
Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it should not be understood as limiting the present invention, those skilled in the art are in the scope of the utility model
Inside it can make changes, modifications, alterations, and variations to the above described embodiments.
Claims (10)
1. a kind of compressor protective circuit characterized by comprising
Protective module is arranged in the control loop of compressor major loop, generates control signal for controlling the control loop；
Major loop control module is arranged on compressor major loop, for controlling the compression owner according to the control signal
The closing or opening in circuit.
2. circuit according to claim 1, which is characterized in that the major loop control module are as follows: be arranged in the compression
Contactor on owner circuit.
3. circuit according to claim 1 or 2, which is characterized in that the protective module is temperature limiter.
4. circuit according to claim 3, which is characterized in that the control signal is that the control loop is disconnected or connect
The signal generated when logical；
The temperature limiter fixation is located on compressor exhaust pipe；
The temperature information of the temperature limiter real-time detection compressor exhaust pipe, and when the temperature information is greater than or equal to temperature threshold
When value, the control loop is disconnected；When the temperature information is less than temperature threshold, the control loop is connected.
5. circuit according to claim 3, which is characterized in that the temperature limiter includes: temperature-sensing element (device), the temperature
Sensing element is thermosensitive bimetal.
6. circuit according to claim 1, which is characterized in that the protective module includes: temperature sensor and controller；
The major loop control module includes: electronic switch；
The temperature sensor fixation is located on compressor exhaust pipe；
The electronic switch is connected in series on compressor major loop；
The controller can according to the temperature sensor detect temperature information come control the electronic switch connection or
It disconnects.
7. circuit according to claim 6, which is characterized in that the controller can be detected according to the temperature sensor
Temperature information control being switched on or switched off for the electronic switch, comprising:
When the temperature information is greater than or equal to temperature threshold, the controller controls the electronic switch and disconnects；
When the temperature information is less than temperature threshold, the controller controls the electronic switch and connects.
8. a kind of circuit system characterized by comprising
Compressor, major loop, control loop, and, such as the described in any item compressor protective circuits of claim 1-7；
The compressor and the control loop are connect with the major loop respectively.
9. circuit system according to claim 8, which is characterized in that
The major loop is compressor power supply；
The common terminal of the compressor is connect with one end of the major loop；
After the starting terminals of the compressor are connected with the start-up capacitance of the compressor, the operation wiring with the compressor
It holds and ties, then connect with the other end of the major loop.
10. a kind of air conditioner characterized by comprising circuit system as claimed in claim 8 or 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821480132.9U CN208950836U (en) | 2018-09-10 | 2018-09-10 | Compressor protective circuit, circuit system and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821480132.9U CN208950836U (en) | 2018-09-10 | 2018-09-10 | Compressor protective circuit, circuit system and air conditioner |
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| Publication Number | Publication Date |
|---|---|
| CN208950836U true CN208950836U (en) | 2019-06-07 |
Family
ID=66737677
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821480132.9U Active CN208950836U (en) | 2018-09-10 | 2018-09-10 | Compressor protective circuit, circuit system and air conditioner |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236627A (en) * | 2018-09-10 | 2019-01-18 | 珠海格力电器股份有限公司 | Compressor protective circuit, circuit system and air conditioner |
-
2018
- 2018-09-10 CN CN201821480132.9U patent/CN208950836U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236627A (en) * | 2018-09-10 | 2019-01-18 | 珠海格力电器股份有限公司 | Compressor protective circuit, circuit system and air conditioner |
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