CN207442431U - A kind of overload protection arrangement, compressor and electric appliance - Google Patents
A kind of overload protection arrangement, compressor and electric appliance Download PDFInfo
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- CN207442431U CN207442431U CN201721184426.2U CN201721184426U CN207442431U CN 207442431 U CN207442431 U CN 207442431U CN 201721184426 U CN201721184426 U CN 201721184426U CN 207442431 U CN207442431 U CN 207442431U
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- protecting mechanism
- temperature
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Abstract
The utility model discloses a kind of overload protection arrangement, compressor and electric appliance, which includes：First overload protecting mechanism (10) and the second overload protecting mechanism (20)；Wherein, first overload protecting mechanism (10), for carrying out overload protection to the pressure of compressor to be protected；Second overload protecting mechanism (20), for compressor to be protected temperature, at least one of electric current carry out overload protection；First overload protecting mechanism (10) and second overload protecting mechanism (20) are arranged in series.The embodiment of the utility model can overcome the defects of controlling process cumbersome, complicated and of high cost in the prior art, realize simple, the simple in structure and at low cost advantageous effect of control process.
Description
Technical field
The utility model belongs to overload protection technical field, and in particular to a kind of overload protection arrangement, compressor and electric appliance；
More particularly to a kind of idle call collection pressure, temperature, current over-load protector, there is the compressor of the overload protective device, having should
The electric appliance of compressor, the guard method of the electric appliance and the computer-reader form storage medium for being stored with this method instruction.
Background technology
Air-conditioning system can be the system that can handle the temperature of room air, humidity, cleanliness factor and air velocity.Mesh
The compressor of preceding domestic air-conditioning system generally requires using current over-load protector, temperature overload protector, prevents that electric current is excessive
Or excessive discharge temperature damage compressor electric motor, it is ensured that compression function normal operation.Also, air-conditioning system high-pressure side also needs to weld
Pressure switch is connect, switchs and disconnects when high side pressure is more than system maximum allowble pressure, make compressor shutdown to protect high pressure
Side system pipeline.
In this way, air-conditioning system is at least needed using two kinds of overload protective devices, to protect air conditioner system, control is more numerous
Trivial, design is more complicated, and cost is higher.
In the prior art, there are control process it is cumbersome, complicated and of high cost the defects of.
Utility model content
The purpose of this utility model is that in view of the foregoing drawbacks, a kind of overload protection arrangement, compressor and electric appliance are provided,
It at least needs to cause control process numerous using two kinds of overload protective devices progress complete machine protections to solve air-conditioning system in the prior art
The problem of trivial, achievees the effect that simplify control process.
The utility model provides a kind of overload protection arrangement, including：First overload protecting mechanism and the second overload protection machine
Structure；Wherein, first overload protecting mechanism, for carrying out overload protection to the pressure of compressor to be protected；It is and/or described
Second overload protecting mechanism, for compressor to be protected temperature, at least one of electric current carry out overload protection.
Optionally, further include：Housing；First overload protecting mechanism and second overload protecting mechanism, are fitted respectively
With being installed on the housing；And/or in the enclosure interior, filled with inert gas；And/or the first overload protection machine
Structure and second overload protecting mechanism, integral type set and/or, be arranged in series.
Optionally, first overload protecting mechanism, including：Pressure-sensitive diaphragm, drive link and control switch；Wherein, it is described
The first end of drive link is contacted with pressure-sensitive diaphragm adaptation；The second end of the drive link, the control with the control switch
End adaptation contact；At least one fixing end of the control switch, by second overload protecting mechanism, with compression to be protected
The feeder ear adaptation connection of machine.
Optionally, first overload protecting mechanism, further includes：Pressure-sensitive mouth；The pressure-sensitive mouth, is fitted with the pressure-sensitive diaphragm
With setting, the refrigerant vapour for making compressor air-discharging end to be protected acts on the pressure-sensitive diaphragm by it, makes the pressure
Power diaphragm deformation and then the drive link is forced to move, the movement of the drive link makes the control switch connection or disconnection；With/
Or, when the device further includes housing, the pressure-sensitive mouth, adaptation opens up position opposite with the pressure-sensitive diaphragm on the housing
Put place；And/or the pressure-sensitive mouth is communicated with the external environment of first overload protecting mechanism, the first overload protection machine
The equal sealed set in other positions in structure in addition to the pressure-sensitive mouth.
Optionally, wherein, the pressure-sensitive diaphragm, including：Metallic membrane；And/or the control switch, including：Fine motion is opened
It closes；And/or the housing, including：Pedestal and clamshell；Wherein, the pedestal, including：Heat stable resin pedestal；It is and/or described
Clamshell, including：Metal shell.
Optionally, second overload protecting mechanism, including：At least one of heater and temperature contact；Wherein, institute
At least one connecting pin of heater is stated, connection is adapted to the feeder ear of compressor to be protected；And/or the temperature contact
At least one contact jaw by being adapted to the thermal contacts set with the temperature contact, is fitted with the feeder ear of compressor to be protected
With connection.
Optionally, second overload protecting mechanism, further includes：First binding post and the second binding post；Wherein, described
One binding post and second binding post, are adapted to connection with the feeder ear of compressor to be protected respectively；The first of the heater
Connecting pin is adapted to connection with first overload protecting mechanism；The second connection end of the heater, with first binding post
Adaptation connection；And/or the first contact jaw of the temperature contact, fixed setting；Second contact jaw of the temperature contact leads to
The thermal contacts are crossed, connection is adapted to second binding post.
Optionally, wherein, the heater, including：Resistance wire；And/or the temperature contact, including：Bimetal leaf or
Three sheet metals, for the environment temperature based on compressor to be protected, and/or the current of electric of compressor to be protected, when heated
It deforms, so as to fulfill itself being switched on or switched off with thermal contacts；And/or the thermal contacts, including：Stationary contact and
Movable contact；The stationary contact is adapted to setting with one end of second binding post；And/or the movable contact, with the temperature
The second contact jaw adaptation of contact is set；And/or when the device further includes housing, first binding post and described second
Binding post is plugged in the pedestal of the housing and stretches out the housing respectively；And/or the first contact of the temperature contact
End, adaptation are arranged at the shell wall of the clamshell of the housing；Wherein, the clamshell is cylindrical or quadrangular shape.
Matching with above device or method, the utility model another further aspect provides a kind of compressor, including：It is described above
Overload protection arrangement.
Optionally, wherein, the compressor, including：Rotator type invariable frequency compressor or vortex invariable frequency compressor；And/or
The overload protection arrangement, adaptation is installed on inside the top shell of the compressor or in high pressure chest, and is series at the compressor
Motor main line in.
Matching with above-mentioned compressor, on the other hand the utility model provides a kind of electric appliance, including：Above-described compression
Machine.
Optionally, the electric appliance includes：At least one of air-conditioning, refrigerator, water heater.
The embodiment of the utility model, by the way that the overload protections such as pressure, temperature, electric current is made to solve air-conditioning system in integration
Overload protective device is more and overload protection controls the problem of more complicated, and control process is simple.
Further, the embodiment of the utility model, by making the overload protections such as pressure, temperature, electric current in integration, Ke Yijian
Change air-conditioning system overload protection component number, solve the problems, such as the problem of air-conditioning system overload protective device is more.
Further, the embodiment of the utility model, by making the overload protections such as pressure, temperature, electric current in integration, Ke Yijian
Change the control of air-conditioning system overload protection, can solve the problems, such as that the control of air-conditioning system overload protection is cumbersome.
Further, the embodiment of the utility model, by making the overload protections such as pressure, temperature, electric current in integration, Ke Yikong
The complicated more problem of adjusting system parts, simplifies structure, saves cost.
Further, the embodiment of the utility model, by the way that the overload protections such as pressure, temperature, electric current will be made in integrated mistake
Protector is carried, substitute the temperature in air-conditioning system in compressor, current over-load protector and is vented between condenser pipe
Pressure controller so as to simplify the protection structure of air-conditioning system and protection process, promotes user experience.
The embodiment of the utility model as a result, by by pressure, temperature, the overcurrent protection structure integrated setting of electric current, solution
Certainly air-conditioning system at least needs to cause control process cumbersome using two kinds of overload protective devices progress complete machine protections in the prior art
Problem, so as to, overcome the defects of controlling process cumbersome, complicated and of high cost in the prior art, realize control process it is simple,
Advantageous effect simple in structure and at low cost.
Other features and advantages of the utility model will illustrate in the following description, also, partly from specification
In become apparent or understood by implementing the utility model.
Below by drawings and examples, the technical solution of the utility model is described in further detail.
Description of the drawings
Fig. 1 is the structure diagram of an embodiment of the overload protection arrangement of the utility model；
Fig. 2 is the structure diagram of another embodiment of the overload protection arrangement of the utility model.
With reference to attached drawing, reference numeral is as follows in the utility model embodiment：
The first overload protecting mechanisms of 10-；11- pressure-sensitive mouths；12- pressure-sensitive diaphragms；13- drive links；14- microswitches；20-
Two overload protecting mechanisms (i.e. the overload protecting mechanism of electric current and/or temperature)；21- heaters；22- temperature contacts；23- temperature is touched
Point；231- stationary contacts；232- movable contacts；The first binding posts of 24-；The second binding posts of 25-；30- housings；31- clamshells (such as：Gold
Belong to shell)；32- pedestals (such as：Heat stable resin pedestal).
Specific embodiment
It is specific below in conjunction with the utility model to make the purpose of this utility model, technical solution and advantage clearer
Technical solutions of the utility model are clearly and completely described in embodiment and corresponding attached drawing.Obviously, described embodiment
Only it is the utility model part of the embodiment, instead of all the embodiments.Based on the embodiment in the utility model, this field
Those of ordinary skill's all other embodiments obtained without making creative work, belong to the utility model
The scope of protection.
Embodiment according to the present utility model provides a kind of overload protection arrangement, the dress of the utility model as shown in Figure 1
The structure diagram for the embodiment put.The overload protection arrangement can include：First overload protecting mechanism 10 and the second overload
Protection mechanism 20.
In an optional example, first overload protecting mechanism 10 can be used for the pressure to compressor to be protected
Carry out overload protection.
Optionally, first overload protecting mechanism 10, can include：Pressure-sensitive diaphragm 12, drive link 13 and control switch.
In an optional specific example, the first end of the drive link 13 is contacted with the pressure-sensitive diaphragm 12 adaptation；Institute
The second end of drive link 13 is stated, is contacted with the control terminal adaptation of the control switch.
In an optional specific example, at least one fixing end of the control switch is protected by the described second overload
Mechanism 20 is protected, connection is adapted to the feeder ear of compressor to be protected.
It is set as a result, by the adaptation of pressure-sensitive diaphragm, drive link and control switch, can realize pressure overload protection, and
It is simple in structure, control reliability is high.
More optionally, the pressure-sensitive diaphragm 12, can include：Metallic membrane.
As a result, by using metallic membrane as pressure-sensitive diaphragm, thoughts and feelings sensitivity is good, reliability is high.
More optionally, the control switch, can include：Microswitch 14.
Such as：First fixing end of microswitch 14 is connected to the clamshell 32 of housing 30.The second of microswitch 14 is fixed
End, by 21 and first binding post 24 of heater, connection is adapted to the feeder ear of compressor to be protected.
It is switched as a result, by using microswitch as control, draw property is good, accuracy is high.
Optionally, first overload protecting mechanism 10, can also include：Pressure-sensitive mouth 11.
In an optional specific example, the pressure-sensitive mouth 11 is adapted to setting with the pressure-sensitive diaphragm 12, may be used to
The refrigerant vapour at compressor air-discharging end to be protected can be used for the pressure-sensitive diaphragm 12 by its work, make the pressure-sensitive diaphragm 12
It deforms and then the drive link 13 is forced to move, the movement of the drive link 13 makes the control switch connection or disconnection.
Such as：High pressure refrigerant vapor is acted on by pressure-sensitive mouth on stress metal diaphragm, can be deformed diaphragm, is become
The diaphragm of shape can force drive link to move, and be switched on or switched off microswitch.
It is set as a result, by the adaptation of pressure-sensitive mouth, on the one hand can protect other members inside the first overload protecting mechanism
Part, on the other hand convenient for the pressure at expulsion of pressure-sensitive diaphragm sensing compressor, rational in infrastructure, control reliability is high.
In an optional specific example, when the device can also include housing 30, the pressure-sensitive mouth 11, adaptation opens up
On the housing 30 at the position opposite with the pressure-sensitive diaphragm 12.
It is rational in infrastructure as a result, by the way that pressure-sensitive mouth to be opened in position opposite with pressure-sensitive diaphragm on housing.
In an optional specific example, the external environment phase of the pressure-sensitive mouth 11 and first overload protecting mechanism 10
It is logical, the equal sealed set in other positions in first overload protecting mechanism 10 in addition to the pressure-sensitive mouth 11.
Such as：The pressure-sensitive mouth of pressure overload protection device is communicated with the external world, in pressure overload protection device in addition to pressure-sensitive mouth
Other positions all seal.
As a result, by the way that pressure-sensitive mouth is made to be communicated with the external world, and set other component seals inside the first overload protecting mechanism
It puts, makes the compact-sized, convenient to pressure sensitive mode of the first overload protecting mechanism, be conducive to improve sensing reliability.
In an optional example, second overload protecting mechanism 20, can be used for the temperature to compressor to be protected,
At least one of electric current carries out overload protection.
Such as：The overload protection arrangement, can be a kind of idle call collection pressure, temperature, current over-load protector, the overload
Protector can make the overload protections such as pressure, temperature, electric current in integration, so as to solve air-conditioning system overload protective device it is more and
The problem of overload protection control is more complicated.
As a result, by the pressure protection of the first overload protecting mechanism, in the temperature of the second overload protecting mechanism, electric current at least
One of protection, the overload protections such as pressure, temperature, electric current can be made in integration, it is more to solve air-conditioning system overload protective device
The problem of more complicated is controlled with overload protection, control process is simplified, also simplifies structure.
Optionally, second overload protecting mechanism 20, can include：In heater 21 and temperature contact 22 at least it
One.
In an optional specific example, at least one connecting pin of the heater 21, the confession with compressor to be protected
Electric end adaptation connection.
More optionally, the heater 21, can include：Resistance wire.
Such as：Heater inherently resistance wire, is generated heat due to the fuel factor of electric current, voltage invariable current increase when by
P=I2* R understands that resistance wire heating power becomes larger；The caloric value of resistance wire can make double gold when electric current reaches maximum allowed current
Belong to piece or three sheet deformations, contact disconnects.
As a result, by using resistance wire as heater, simple in structure, the reliability sensed to electric current is high.
In an optional specific example, at least one contact jaw of the temperature contact 22, by being touched with the temperature
The thermal contacts 23 that the adaptation of piece 22 is set, connection is adapted to the feeder ear of compressor to be protected.
It is set as a result, by the adaptation of heater and temperature contact, can realize electric current and the overload protection of temperature, structure
Simply, and reliability is high.
More optionally, the temperature contact 22, can include：Bimetal leaf or three sheet metals can be used for being based on waiting to protect
The environment temperature of compressor, and/or the current of electric of compressor to be protected are protected, is deformed when heated, so as to fulfill itself
With being switched on or switched off for thermal contacts 23.
Such as：Overload protective device ambient temperature is extremely high, bimetal leaf (or three sheet metals) during more than maximum permissible temperature
Temperature rise deflection increase, contact disconnects.When temperature is less than set point of temperature lower limit, contacting.
Such as：Metal contact piece can include：Bimetal leaf (or three sheet metals).Using bimetal leaf and use three metals
The effect of piece is identical with effect, and for three sheet metal sensitivity highers so better, current three sheet metal gradually substitutes bimetallic
Piece uses.
Such as：Since bimetal leaf or three sheet metals are into one by the different metal laminate of two or three of coefficient of thermal expansion
Piece, when heated due to the difference of the not collinear elongation of coefficient of thermal expansion, which can bend to control the disconnection of contact on one side
Or it connects.
It is good to the sensitivity of temperature sense, reliable as a result, by using bimetal leaf or three sheet metals as temperature contact
Property it is high.
More optionally, the thermal contacts 23, can include：Stationary contact 231 and movable contact 232.
In a more optional specific example, the stationary contact 231 is adapted to one end of second binding post 25 and sets
It puts.
In a more optional specific example, the movable contact 232 is adapted to the second contact jaw of the temperature contact 22
It sets.
In a more optional specific example, the first contact jaw of the temperature contact 22, adaptation is arranged at the housing
The shell wall of 30 clamshell 32.
It is set as a result, by the adaptation of stationary contact and movable contact so that contact or disconnection of the temperature contact with thermal contacts
It is more convenient, and then can be promoted to temperature controlled reliability and sensitivity.
Wherein, the clamshell 32 is cylindrical or quadrangular shape.
As a result, by the clamshell of various shapes, the overload protection arrangement can be made to be suitable for a variety of occasions, the scope of application
Extensively, the flexibility used is good, versatile.
Optionally, second overload protecting mechanism 20, can also include：First binding post 24 and the second binding post 25.
In an optional specific example, first binding post 24 and second binding post 25, respectively with it is to be protected
The feeder ear adaptation connection of compressor.
In an optional specific example, the first connecting pin of the heater 21, with first overload protecting mechanism
10 adaptation connections.The second connection end of the heater 21 is adapted to connection with first binding post 24.
In an optional specific example, the first contact jaw of the temperature contact 22, fixed setting.The temperature contact
By the thermal contacts 23, connection is adapted to second binding post 25 for 22 the second contact jaw.
It being set as a result, by the adaptation of binding post so that the connection between overload protection arrangement and compressor is more convenient,
It is and safe and reliable.
More optionally, first binding post 24 and second binding post 25 are plugged in the base of the housing 30 respectively
Seat 31 and the stretching housing 30.
As a result, by making the stability and reliability that are adapted to setting, can promote binding post installation of the binding post with housing.
In an optional example, first overload protecting mechanism 10 and second overload protecting mechanism 20, one
Formula is set.
In an optional example, first overload protecting mechanism 10 and second overload protecting mechanism 20, series connection
It sets.
Such as：Make the overload protections such as pressure, temperature, electric current that it is more, empty to solve air-conditioning system overload protective device in integration
The problems such as control of adjusting system overload protection is cumbersome, air-conditioning system parts are complicated more, simplifies air-conditioning system overload protection member
Number of devices also simplifies the control of air-conditioning system overload protection.
The settings such as set, be arranged in series by the integral type of the first overload protecting mechanism, the second overload protecting mechanism as a result,
Mode can realize the multiple control modes such as integral type control, the coordinated signals of the overload protections such as pressure, temperature, electric current so that
Control process is simpler, and control structure is simpler.
In an optional embodiment, it can also include：Housing 30.
In an optional example, first overload protecting mechanism 10 and second overload protecting mechanism 20, respectively
Adaptation is installed on the housing 30.
In an optional example, inside the housing 30, filled with inert gas.
Such as：Inside the housing 30, filled with helium, neon etc., it can be used for the first overload protection machine
At least one of structure 10, described second overload protecting mechanism 20 carry out arc extinguishing and heat conduction protection.
Such as：Arc extinguishing and the work of heat conduction equipped with inert gas, are played in such pressure, temperature, the inside of current over-load protector
With.
It is set as a result, by the adaptation of housing, can house and protect the first overload protecting mechanism and the second overload protection
Mechanism also helps the reliability and security for promoting overload protection and compressor operating.
Optionally, the housing 30, can include：Pedestal 31 and clamshell 32.
More optionally, the pedestal 31, can include：Heat stable resin (such as：Fire resistant resin) pedestal.
More optionally, the clamshell 32, can include：Metal shell.
Such as：Such pressure, temperature, the internal structure of current over-load protector can be in cylindric or quadrangular shape
Metal shell and heat stable resin (such as：Fire resistant resin) pressure controller, heater, metal contact piece are loaded onto in pedestal.Wherein,
The pressure controller can be pressure overload protection device.
As a result, by using heat resistant resin material as pedestal, using metal shell as clamshell, be conducive to be promoted to the
One overload protecting mechanism and the safety and reliability of the second overload protecting mechanism protection.
Through substantial amounts of verification experimental verification, using the technical solution of the present embodiment, by protecting the overloads such as pressure, temperature, electric current
It protects in integration, solves the problems, such as that air-conditioning system overload protective device is more and overload protection control is more complicated, control process is simple.
Embodiment according to the present utility model additionally provides a kind of overload protection method corresponding to overload protection arrangement.
The overload protection method can include：Using above-described overload protection arrangement, the pressure of compressor to be protected was carried out
Carry protection and/or, at least one of temperature, electric current to compressor to be protected carry out overload protection.
Such as：Such overload protective device is instead of temperature, current over-load protector and the row in compressor in air-conditioning system
Pressure controller of the gas between condenser pipe.Under refrigeration or heating mode, if continued by compressor electric motor electric current
It is excessively high, then this overload protective device internal heat generation device can be made to generate heat, so that bimetal leaf temperature distortion, bimetal leaf contact disconnects,
Then make overload protective device breaking.
Such as：The overload protection arrangement, can be a kind of idle call collection pressure, temperature, current over-load protector, the overload
Protector can make the overload protections such as pressure, temperature, electric current in integration, so as to solve air-conditioning system overload protective device it is more and
The problem of overload protection control is more complicated.
As a result, by the pressure protection of the first overload protecting mechanism, in the temperature of the second overload protecting mechanism, electric current at least
One of protection, the overload protections such as pressure, temperature, electric current can be made in integration, it is more to solve air-conditioning system overload protective device
The problem of more complicated is controlled with overload protection, control process is simplified, also simplifies structure.
In an optional example, overload protection is carried out to the pressure of compressor to be protected, can be included：When pressure to be protected
When the pressure of the refrigerant vapour of contracting machine exhaust end is more than setting pressure limit, the pressure in first overload protecting mechanism 10
The deformation of diaphragm 12 forces drive link 13 to move, and the movement of the drive link 13 disconnects control switch, to realize to pressure to be protected
The overload protection of contracting machine pressure at expulsion.
It is set as a result, by the adaptation of pressure-sensitive diaphragm, drive link and control switch, can realize pressure overload protection, and
It is simple in structure, control reliability is high.
In an optional example, at least one of temperature, electric current to compressor to be protected carry out overload protection, can
To include：When the environment temperature of compressor to be protected is more than design temperature scope, in second overload protecting mechanism 20
The deformation of temperature contact 22 makes it be disconnected with thermal contacts 23, to realize that the temperature overload to compressor to be protected is protected.
In an optional example, at least one of temperature, electric current to compressor to be protected carry out overload protection, also
It can include：When the current of electric of compressor to be protected is more than setting electric current scope, in second overload protecting mechanism 20
Heater 21 fever temperature contact 22 is forced to deform, then make temperature contact 22 deformation disconnected with thermal contacts 23, with realization
Overcurrent protection to compressor to be protected.
Such as：In cooling mode, it is more than to allow use scope or the dirty stifled or high pressure crosswind of condenser that external environment is excessively high
When machine rotating speed is too low, can all make delivery temperature raise or pressure at expulsion rise, when delivery temperature be increased to it is maximum allowable
Temperature upper limit (such as：The permission use scope of delivery temperature can be 105 DEG C -135 DEG C) or pressure at expulsion be more than that system is maximum
Permission upper pressure limit (such as：The permission use scope of pressure at expulsion can be 3.8MPa -4.8MPa) when, pressure overload can be made
It disconnects or disconnects bimetal leaf temperature distortion bimetal leaf contact, can all make this overload protective device breaking, make compressor shutdown
Compressor electric motor, compressor housing and system pipeline to be protected not to be destroyed by high temperature or high pressure.
Such as：In a heating mode, when delivery temperature is more than maximum allowable temperature upper limit (105 DEG C -135 DEG C) or exhaust
When pressure is more than the system maximum allowble pressure upper limit (3.8MPa -4.8MPa), it equally can all make overload protective device breaking, make pressure
Contracting machine shuts down that compressor electric motor, compressor housing and system pipeline is protected not to be destroyed by high temperature or high pressure.
It is set as a result, by the adaptation of heater and temperature contact, can realize electric current and the overload protection of temperature, structure
Simply, and reliability is high.
In an optional embodiment, it can also include：When the pressure at expulsion of compressor to be protected is pressed not less than setting
Power scope, environment temperature not less than design temperature scope and current of electric not less than setting electric current scope when, just allow to be protected
Compressor, which is powered, to be run.
Such as：Such collection pressure, temperature, the overload protective device of electric current are tandem overload protective devices, as long as pressure, electricity
Stream, temperature one of which are more than to allow all cause the open circuit of such overload protective device during the scope of application, only when pressure, electric current,
When temperature all recovers to allow the scope of application, such overload protective device can be just again switched on.
Such as：The overload protective device can be used for the compressor of air-conditioning.Wherein, after air-conditioning opens compressor start, outside
Boundary's environment is in allowed band and voltage and current controller is when normal, and system ability normal operation overload protective device will not break
It opens.
The settings such as set, be arranged in series by the integral type of the first overload protecting mechanism, the second overload protecting mechanism as a result,
Mode can realize the multiple control modes such as integral type control, the coordinated signals of the overload protections such as pressure, temperature, electric current so that
Control process is simpler, and control structure is simpler.
The processing and function realized by the method for the present embodiment essentially correspond to earlier figures 1 to device shown in Fig. 2
Embodiment, principle and example, therefore not detailed part in the description of the present embodiment may refer to mutually speaking on somebody's behalf in previous embodiment
Bright, this will not be repeated here.
Through substantial amounts of verification experimental verification, using the technical solution of the utility model, by making the overloads such as pressure, temperature, electric current
Integration is protected in, can simplify air-conditioning system overload protection component number, solves that air-conditioning system overload protective device is more to ask
The problem of topic.
Embodiment according to the present utility model additionally provides a kind of storage medium corresponding to overload protection method.This is deposited
Storage media can include：A plurality of instruction is stored in the storage medium；The a plurality of instruction, for being loaded simultaneously by processor
Perform above-described overload protection method.
The processing and function realized by the storage medium of the present embodiment essentially correspond to the embodiment of preceding method, original
Reason and example, therefore not detailed part in the description of the present embodiment, may refer to the related description in previous embodiment, do not do herein
It repeats.
Through substantial amounts of verification experimental verification, using the technical solution of the utility model, by making the overloads such as pressure, temperature, electric current
Integration is protected in, the control of air-conditioning system overload protection can be simplified, it is cumbersome that the control of air-conditioning system overload protection can be solved
Problem.
Embodiment according to the present utility model additionally provides one kind corresponding to overload protection arrangement or overload protection method
Compressor.The compressor can include：Above-described overload protection arrangement；Alternatively, processor, for performing a plurality of instruction；
Memory, for storing a plurality of instruction；Wherein, a plurality of instruction, for by the memory storage, and by the processor
It loads and performs above-described overload protection method.
Optionally, the compressor can include：Rotator type invariable frequency compressor or vortex invariable frequency compressor.
Such as：The overload protective device, can be adapted for：The top shell of rotator type invariable frequency compressor and vortex invariable frequency compressor
Internal or high pressure chest.
Optionally, the overload protection arrangement, adaptation is installed on inside the top shell of the compressor or in high pressure chest, and is gone here and there
It is coupled in the motor main line of the compressor.
Such as：Such overload protective device is adapted to rotator type invariable frequency compressor or the different compressor of other methods of operation
(such as：Scroll compressor etc.) it is internal, high-pressure side is vented mounted on compressor top or high pressure chest, is series at compressor electric motor
In main line.
The processing and function realized by the equipment of the present embodiment essentially correspond to the embodiment of preceding method, principle and
Example, therefore not detailed part in the description of the present embodiment, may refer to the related description in previous embodiment, do not do herein superfluous
It states.
Through substantial amounts of verification experimental verification, using the technical solution of the utility model, by making the overloads such as pressure, temperature, electric current
Integration is protected in, can be simplified structure with the complicated more problem of air-conditioning system parts, save cost.
Embodiment according to the present utility model additionally provides a kind of electric appliance corresponding to compressor.The electric appliance can include：
Above-described compressor.
Optionally, the electric appliance includes：At least one of air-conditioning, refrigerator, water heater.
In an optional embodiment, overload protection arrangement which uses can be a kind of idle call collection pressure
Power, temperature, current over-load protector, the overload protective device can make the overload protections such as pressure, temperature, electric current in integration, from
And solve the problems, such as that air-conditioning system overload protective device is more and overload protection control is more complicated.
Wherein, such pressure, temperature, the internal structure of current over-load protector can be in cylindric or quadrangular shape
Metal shell and heat stable resin (such as：Fire resistant resin) pressure controller, heater, metal contact piece are loaded onto in pedestal.Wherein,
The pressure controller can be pressure overload protection device.
In an optional example, the pressure-sensitive mouth of pressure overload protection device is communicated with the external world, is removed in pressure overload protection device
Other positions outside pressure-sensitive mouth all seal.
In an optional example, such pressure, temperature, the inside of current over-load protector equipped with inert gas, rise and go out
Arc and the effect of heat conduction.
In an optional example, metal contact piece can include：Bimetal leaf (or three sheet metals).Use bimetal leaf
The effect of three sheet metals is identical with effect with using, three sheet metal sensitivity highers so better, current three sheet metal by
Gradually bimetal leaf is substituted to use.
Wherein, since bimetal leaf or three sheet metals are into one by the different metal laminate of two or three of coefficient of thermal expansion
Piece, when heated due to the difference of the not collinear elongation of coefficient of thermal expansion, which can bend to control the disconnection of contact on one side
Or it connects.Overload protective device ambient temperature is extremely high, bimetal leaf (or three sheet metals) temperature liter during more than maximum permissible temperature
High deflection increase, contact disconnects.When temperature is less than set point of temperature lower limit, contacting.
In an optional example, heater inherently resistance wire is generated heat, voltage is constant due to the fuel factor of electric current
By P=I when electric current increases2* R understands that resistance wire heating power becomes larger；The hair of resistance wire when electric current reaches maximum allowed current
Heat can make bimetal leaf or three sheet deformations, and contact disconnects.
Optionally, high pressure refrigerant vapor is acted on by pressure-sensitive mouth on stress metal diaphragm, can be deformed diaphragm,
The diaphragm of deformation can force drive link to move, and be switched on or switched off microswitch.
In an optional example, such collection pressure, temperature, the overload protective device of electric current are tandem overload protective devices,
As long as pressure, electric current, temperature one of which are more than to allow all cause the open circuit of such overload protective device during the scope of application, only when
When pressure, electric current, temperature all recover to allow the scope of application, such overload protective device can be just again switched on.
In an optional example, such overload protective device is adapted to rotator type invariable frequency compressor or other methods of operation not
Same compressor is (such as：Scroll compressor etc.) it is internal, high-pressure side is vented mounted on compressor top or high pressure chest, is series at
In compressor electric motor main line.
Optionally, the overload protective device, can be adapted for：The top of rotator type invariable frequency compressor and vortex invariable frequency compressor
Shell inside or high pressure chest.
In an optional embodiment, which can be used for the compressor of air-conditioning.Wherein, when air-conditioning is opened
After compressor start, external environment is in allowed band and voltage and current controller is when normal, and system could normal operation
Overload protective device not will disconnect.
In an optional example, in cooling mode, excessively high external environment is more than to allow use scope or condenser dirty
When stifled or high-pressure side rotation speed of fan is too low, it can all make delivery temperature rise or pressure at expulsion rise, when delivery temperature liter
Height to maximum allowable temperature upper limit (such as：The permission use scope of delivery temperature can be 105 DEG C -135 DEG C) or pressure at expulsion
More than the system maximum allowble pressure upper limit (such as：The permission use scope of pressure at expulsion can be 3.8MPa -4.8MPa) when,
It can disconnect pressure overload or disconnect bimetal leaf temperature distortion bimetal leaf contact, can all make this overload protective device breaking,
Make compressor shutdown compressor electric motor, compressor housing and system pipeline to be protected not to be destroyed by high temperature or high pressure.
In an optional example, in a heating mode, when delivery temperature be more than maximum allowable temperature upper limit (105 DEG C-
135 DEG C) or pressure at expulsion be more than the system maximum allowble pressure upper limit (3.8MPa -4.8MPa) when, equally can all make overload protection
Device open circuit makes compressor shutdown compressor electric motor, compressor housing and system pipeline to be protected not to be destroyed by high temperature or high pressure.
In an optional example, under refrigeration or heating mode, if lasting excessively high by compressor electric motor electric current,
This overload protective device internal heat generation device can be made to generate heat, so that bimetal leaf temperature distortion, bimetal leaf contact disconnects, and then makes
Carry protector open circuit.
As it can be seen that such overload protective device is instead of temperature, current over-load protector and the row in compressor in air-conditioning system
Pressure controller of the gas between condenser pipe.
The processing and function realized by the electric appliance of the present embodiment essentially correspond to the embodiment of aforementioned compressor, principle
And example, therefore not detailed part in the description of the present embodiment, the related description in previous embodiment is may refer to, is not done herein superfluous
It states.
Through substantial amounts of verification experimental verification, using the technical solution of the utility model, by that will wait pressure, temperature, electric current
Load is protected in integrated overload protective device, substitutes temperature, current over-load protector and exhaust in compressor in air-conditioning system
Pressure controller between condenser pipe so as to simplify the protection structure of air-conditioning system and protection process, promotes user's body
It tests.
To sum up, it will be readily appreciated by those skilled in the art that on the premise of not conflicting, above-mentioned each advantageous manner can be certainly
It is combined, is superimposed by ground.
The above description is only the embodiments of the present invention, is not intended to limit the utility model, for this field
Technical staff for, various modifications and changes may be made to the present invention.Within the spirit and principle of the utility model,
Any modifications, equivalent replacements and improvements are made should be included within the right of the utility model.
Claims (20)
1. a kind of overload protection arrangement, which is characterized in that including：First overload protecting mechanism (10) and the second overload protecting mechanism
(20)；Wherein,
First overload protecting mechanism (10), for carrying out overload protection to the pressure of compressor to be protected；Second mistake
Carry protection mechanism (20), for compressor to be protected temperature, at least one of electric current carry out overload protection；
First overload protecting mechanism (10) and second overload protecting mechanism (20), are arranged in series.
2. the apparatus according to claim 1, which is characterized in that further include：Housing (30)；
First overload protecting mechanism (10) and second overload protecting mechanism (20) are adapted to are installed on the housing respectively
(30)。
3. the apparatus of claim 2, which is characterized in that it is internal in the housing (30), filled with inert gas.
4. the apparatus of claim 2, which is characterized in that the housing (30), including：Pedestal (31) and clamshell
(32)；Wherein,
The pedestal (31), including：Heat stable resin pedestal；And/or
The clamshell (32), including：Metal shell.
5. according to the device described in one of claim 1-4, which is characterized in that first overload protecting mechanism (10) and described
Second overload protecting mechanism (20), integral type are set.
6. according to the device described in one of claim 1-4, which is characterized in that first overload protecting mechanism (10), including：
Pressure-sensitive diaphragm (12), drive link (13) and control switch；Wherein,
The first end of the drive link (13) is contacted with the pressure-sensitive diaphragm (12) adaptation；
The second end of the drive link (13) is contacted with the control terminal adaptation of the control switch；
At least one fixing end of the control switch, by second overload protecting mechanism (20), with compressor to be protected
Feeder ear adaptation connection.
7. device according to claim 6, which is characterized in that first overload protecting mechanism (10) further includes：Pressure-sensitive
Mouth (11)；
The pressure-sensitive mouth (11) is adapted to setting with the pressure-sensitive diaphragm (12), for making the refrigeration at compressor air-discharging end to be protected
Agent steam acts on the pressure-sensitive diaphragm (12) by it, deforms the pressure-sensitive diaphragm (12) and then forces the drive link
(13) mobile, the movement of the drive link (13) makes the control switch connection or disconnection.
8. device according to claim 7, which is characterized in that
When the device further includes housing (30), the pressure-sensitive mouth (11), adaptation is opened on the housing (30) and the pressure
At the opposite position of power diaphragm (12).
9. device according to claim 7, which is characterized in that
The pressure-sensitive mouth (11) communicates with the external environment of first overload protecting mechanism (10), the first overload protection machine
The equal sealed set in other positions in structure (10) in addition to the pressure-sensitive mouth (11).
10. device according to claim 6, which is characterized in that wherein,
The pressure-sensitive diaphragm (12), including：Metallic membrane；
The control switch, including：Microswitch (14).
11. according to the device described in one of claim 1-4, which is characterized in that second overload protecting mechanism (20), bag
It includes：At least one of heater (21) and temperature contact (22)；Wherein,
At least one connecting pin of the heater (21), connection is adapted to the feeder ear of compressor to be protected；
At least one contact jaw of the temperature contact (22), by being adapted to the thermal contacts set with the temperature contact (22)
(23), it is adapted to connection with the feeder ear of compressor to be protected.
12. according to the devices described in claim 11, which is characterized in that second overload protecting mechanism (20) further includes：The
One binding post (24) and the second binding post (25)；Wherein,
First binding post (24) and second binding post (25), are adapted to company with the feeder ear of compressor to be protected respectively
It connects；
First connecting pin of the heater (21) is adapted to connection with first overload protecting mechanism (10)；The heater
(21) second connection end is adapted to connection with first binding post (24).
13. according to the devices described in claim 11, which is characterized in that the first contact jaw of the temperature contact (22), it is fixed
It sets；Second contact jaw of the temperature contact (22), it is suitable with second binding post (25) by the thermal contacts (23)
With connection.
14. device according to claim 12, which is characterized in that wherein,
The heater (21), including：Resistance wire；
The temperature contact (22), including：Bimetal leaf or three sheet metals, for the environment temperature based on compressor to be protected,
And/or the current of electric of compressor to be protected, it deforms when heated, so as to fulfill the connection of itself and thermal contacts (23)
Or it disconnects.
15. device according to claim 12, which is characterized in that
The thermal contacts (23), including：Stationary contact (231) and movable contact (232)；The stationary contact (231), with described second
One end adaptation of binding post (25) is set；And/or the movable contact (232), the second contact jaw with the temperature contact (22)
Adaptation is set.
16. device according to claim 12, which is characterized in that when the device further includes housing (30),
First binding post (24) and second binding post (25), be plugged in respectively the housing (30) pedestal (31),
And stretch out the housing (30)；
First contact jaw of the temperature contact (22), adaptation are arranged at the shell wall of the clamshell (32) of the housing (30)；Wherein,
The clamshell (32) is cylindrical or quadrangular shape.
17. a kind of compressor, which is characterized in that including：Overload protection arrangement as described in claim 1-16 is any.
18. compressor according to claim 17, which is characterized in that wherein,
The compressor, including：Rotator type invariable frequency compressor or vortex invariable frequency compressor；
The overload protection arrangement, adaptation is installed on inside the top shell of the compressor or in high pressure chest, and is series at the pressure
In the motor main line of contracting machine.
19. a kind of electric appliance, which is characterized in that including：Compressor as described in claim 17 or 18.
20. electric appliance according to claim 19, which is characterized in that the electric appliance includes：In air-conditioning, refrigerator, water heater
At least one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721184426.2U CN207442431U (en) | 2017-09-15 | 2017-09-15 | A kind of overload protection arrangement, compressor and electric appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721184426.2U CN207442431U (en) | 2017-09-15 | 2017-09-15 | A kind of overload protection arrangement, compressor and electric appliance |
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| Publication Number | Publication Date |
|---|---|
| CN207442431U true CN207442431U (en) | 2018-06-01 |
Family
ID=62301509
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721184426.2U Expired - Fee Related CN207442431U (en) | 2017-09-15 | 2017-09-15 | A kind of overload protection arrangement, compressor and electric appliance |
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| Country | Link |
|---|---|
| CN (1) | CN207442431U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107611926A (en) * | 2017-09-15 | 2018-01-19 | 珠海格力电器股份有限公司 | A kind of overload protection arrangement, method, storage medium, compressor and electrical equipment |
-
2017
- 2017-09-15 CN CN201721184426.2U patent/CN207442431U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107611926A (en) * | 2017-09-15 | 2018-01-19 | 珠海格力电器股份有限公司 | A kind of overload protection arrangement, method, storage medium, compressor and electrical equipment |
| WO2019052317A1 (en) * | 2017-09-15 | 2019-03-21 | 格力电器（武汉）有限公司 | Overload protection apparatus and method, and storage medium, compressor and electric appliance |
| US11063420B2 (en) | 2017-09-15 | 2021-07-13 | Gree Electric Appliance (Wuhan) Co., Ltd. | Overload protection device and method, storage medium, compressor and electric appliance |
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