CN207051751U - The alignment circuit and blower fan system of a kind of blower fan - Google Patents
The alignment circuit and blower fan system of a kind of blower fan Download PDFInfo
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- CN207051751U CN207051751U CN201720551642.XU CN201720551642U CN207051751U CN 207051751 U CN207051751 U CN 207051751U CN 201720551642 U CN201720551642 U CN 201720551642U CN 207051751 U CN207051751 U CN 207051751U
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- blower fan
- circuit
- resistive elements
- switching switch
- current supply
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- 230000001105 regulatory effect Effects 0.000 claims abstract description 8
- 230000005611 electricity Effects 0.000 claims description 7
- 230000009467 reduction Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 8
- 206010008190 Cerebrovascular accident Diseases 0.000 description 3
- 208000006011 Stroke Diseases 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
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- Control Of Positive-Displacement Air Blowers (AREA)
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Abstract
The utility model discloses a kind of alignment circuit of blower fan, including the conventional regulating working conditions circuit being arranged on the current supply circuit of blower fan, also include the worst cold case regulation circuit being connected on current supply circuit, worst cold case regulation circuit specifically includes the switching switch and resistive elements being connected in parallel, switching switch disconnects under worst cold case, to control resistive elements to access current supply circuit.As can be seen here, by the addition of resistive elements, the electric current on current supply circuit can be reduced so that the wind speed of blower fan further reduces, to meet the operation of worst cold case.Due in the present embodiment, by resistive elements reduction of speed, not producing harmonic wave, the problem of can avoiding polluting power network, meanwhile, it will not also bring electromagnetism to be mutated and caused electrode noise；Finally, device cost used is low, and circuit structure is simple, it is easy to accomplish.In addition, a kind of blower fan system for including the circuit is also disclosed in the utility model, effect is as described above.
Description
Technical field
Equipment control technology field is the utility model is related to, alignment circuit and blower fan system more particularly to a kind of blower fan
System.
Background technology
The important component of blower fan plurality of devices, such as air-conditioning.In normal conditions, blower fan generally can be according to controller
Multi gear speed change is realized in control.Fig. 1 is the conventional regulating working conditions circuit diagram of prior art.As shown in figure 1, controller is according to input
Instruction controls RY1, RY2 and RY3 respectively, realizes high wind, apoplexy and the different wind speed pattern of three kinds of low wind respectively.
But in specific implementation, the environment not necessarily conventional environment residing for blower fan therefore, also just can not be according to
The control of conventional operating mode adjusts wind speed.Especially under cryogenic refrigeration operating mode, outdoor fan needs lower than the output of conventional operating mode
Wind speed, otherwise condenser radiating very good can cause evaporator to freeze.And it can not directly be met from the very low blower fan of wind speed
The heat transfer requirements of conventional operating mode.For two kinds of different demands of compatible cryogenic refrigeration operating mode and conventional operating mode, it is necessary to turn to conventional
The blower fan of speed increases a speed regulation module of fan.Outdoor fan makes output voltage usually using the mode of controllable silicon copped wave at present
Virtual value is reduced to realize reduction of speed, but this control mode brings serious harmonic wave interference, pollutes power network, simultaneously as input
Voltage jump, motor magnetic flux mutation, sends dull vibrations noise.
As can be seen here, the interference of harmonic wave how is overcome, the vibrations noise for reducing motor is that those skilled in the art urgently solve
Certainly the problem of.
Utility model content
The purpose of this utility model is to provide a kind of alignment circuit of blower fan, for the interference of harmonic wave, reduces the shake of motor
Moving noise.In addition, the purpose of this utility model also provides a kind of blower fan system for including the alignment circuit.
In order to solve the above technical problems, the utility model provides a kind of alignment circuit of blower fan, including it is arranged on the wind
Conventional regulating working conditions circuit on the current supply circuit of machine, in addition to the worst cold case regulation electricity being connected on the current supply circuit
Road, the worst cold case regulation circuit specifically include the switching switch and resistive elements being connected in parallel, and the switching switch is low
Disconnected under warm operating mode, to control the resistive elements to access the current supply circuit.
Preferably, the worst cold case regulation circuit is arranged between the zero line of power supply and the zero line of the blower fan.
Preferably, the quantity of the switching switch is two, and the respectively first switching switch and the second switching switch, described
The quantity of resistive elements is two, and respectively the first resistive elements and the second resistive elements, specific annexation are：
Described first switches switch and first resistive elements parallel connection, and second switching switchs and described second is resistive
Device is in parallel, and the first common port of the first switching switch and first resistive elements is connected with the zero line of the power supply,
Second common port of the first switching switch and first resistive elements and the described second switching switch and second resistance
Property device the first common port connection, it is described second switching switch and second resistive elements the second common port and the electricity
The zero line connection of pole.
Preferably, the resistive elements are electric capacity.
Preferably, in addition to the resistance in parallel with the electric capacity, for absorbing energy caused by the electric capacity electric discharge；
Wherein, when the quantity of the electric capacity is two, the quantity of the resistance is also two, and with the electric capacity one by one
It is corresponding.
Preferably, the switching switch is relay.
In order to solve the above technical problems, the utility model also provides a kind of blower fan system, including blower fan and controller, also wrap
Include the alignment circuit of described blower fan.
Preferably, in addition to the temperature measuring equipment that is arranged at blower fan, the temperature measuring equipment is connected with the controller, described
Controller controls switching to switch on-off according to the signal of the temperature measuring equipment.
The alignment circuit of blower fan provided by the utility model, including the conventional operating mode being arranged on the current supply circuit of blower fan
Circuit is adjusted, in addition to the worst cold case regulation circuit being connected on current supply circuit, worst cold case regulation circuit specifically include simultaneously
Join the switching switch and resistive elements of connection, switching switch disconnects under worst cold case, to control resistive elements access to power back
Road.As can be seen here, by the addition of resistive elements, the electric current on current supply circuit can be reduced so that the wind speed of blower fan is further
Reduce, to meet the operation of worst cold case.Due in the present embodiment, by resistive elements reduction of speed, not producing harmonic wave, can avoid
The problem of polluting power network, meanwhile, it will not also bring electromagnetism to be mutated and caused electrode noise；Finally, device cost used is low, electricity
Line structure is simple, it is easy to accomplish.In addition, the utility model also provides a kind of blower fan system for including the circuit, effect as above institute
State.
Brief description of the drawings
In order to illustrate more clearly of the utility model embodiment, letter will be done to the required accompanying drawing used in embodiment below
Single introduction, it should be apparent that, drawings in the following description are only some embodiments of the utility model, general for this area
For logical technical staff, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the conventional regulating working conditions circuit diagram of prior art；
Fig. 2 is a kind of alignment circuit figure for blower fan that the utility model embodiment provides；
Fig. 3 is the alignment circuit figure for another blower fan that the utility model embodiment provides；
Fig. 4 is a kind of structure chart for blower fan system that the utility model embodiment provides.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe, it is clear that described embodiment is only the utility model part of the embodiment, rather than all real
Apply example.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made, institute
The every other embodiment obtained, belongs to scope of protection of the utility model.
Core of the present utility model is to provide the alignment circuit and blower fan system of a kind of blower fan, for the interference of harmonic wave, drop
The vibrations noise of low motor.
In order that those skilled in the art more fully understand the utility model, below in conjunction with the accompanying drawings and it is embodied
The utility model is described in further detail for mode.
Fig. 2 is a kind of alignment circuit figure for blower fan that the utility model embodiment provides.As shown in figure 1, including being arranged on
Conventional regulating working conditions circuit 10 on the current supply circuit of blower fan 1, in addition to the worst cold case regulation electricity being connected on current supply circuit
Road 11, worst cold case regulation circuit 11 specifically include the switching switch and resistive elements being connected in parallel, and switching switch is in low temperature work
Disconnected under condition, to control resistive elements to access current supply circuit.
As shown in Fig. 2 be connected on after switching switch and resistive elements are in parallel on current supply circuit, under conventional operating mode, control
Device processed realizes that blower fan 1 is run under high wind, apoplexy and low wind respectively by relay RY1-RY3, when in worst cold case, i.e.,
Make closure RY3, now the wind speed of blower fan 1 or too high, if run according to this wind speed, have because condenser radiating is very good
The risk that evaporator may be caused to freeze.Therefore, in the case of this low wind operation, that is, in the case of closing RY3, pass through by
Switching is switched off so that resistive elements are had access on current supply circuit, and now, the electric current on current supply circuit further reduces,
So that the wind speed of blower fan 1 further reduces.
It is understood that the type of resistive elements can select according to actual conditions, such as electric capacity or resistance can be selected
And inductance.But what is accessed due to blower fan 1 under normal circumstances is alternating current, therefore, inductance is not as preferred embodiment.When resistive
When device is electric capacity, then the capacitance of electric capacity can flexibly be chosen, and when resistive elements are resistance, then the resistance of resistance can also spirit
It is living to choose.In addition, the quantity of resistive elements and switching switch can be set according to actual conditions, when resistive elements and switching switch
Quantity it is more, then can obtain more regulation selections, realize the regulation of more gears, embodiment will be detailed below
Thin description.
Preferably embodiment, in specific implementation, worst cold case regulation circuit 11 be arranged on power supply zero line and
Between the zero line of blower fan 1.In addition, switching switch is relay, it is to be understood that except relay can also be that machinery is opened
Close, but mechanical switch is not easy to realize automation.
Worst cold case regulation circuit 11 is arranged between the zero line of power supply and the zero line of blower fan 1, in replacing or access
Security can be ensured, prevent unexpected generation.
The alignment circuit for the blower fan that the present embodiment provides, including the conventional regulating working conditions being arranged on the current supply circuit of blower fan
Circuit, in addition to the worst cold case regulation circuit being connected on current supply circuit, worst cold case regulation circuit specifically include in parallel connect
The switching switch and resistive elements connect, switching switch disconnect under worst cold case, to control resistive elements to access current supply circuit.By
This is visible, by the addition of resistive elements, can reduce the electric current on current supply circuit so that and the wind speed of blower fan further reduces,
To meet the operation of worst cold case.Due in the present embodiment, by resistive elements reduction of speed, not producing harmonic wave, can avoid polluting
The problem of power network, meanwhile, it will not also bring electromagnetism to be mutated and caused electrode noise；Finally, device cost used is low, circuit knot
Structure is simple, it is easy to accomplish.
Fig. 3 is the alignment circuit figure for another blower fan that the utility model embodiment provides.As shown in figure 3, in above-mentioned reality
On the basis of applying example, the quantity for switching switch is two, and the respectively first switching switchings of switch RY4 and second switch RY5, resistive
The quantity of device is two, and respectively the first resistive elements and the second resistive elements, specific annexation are：
First switching switch RY4 and the first resistive elements are in parallel, and the second switching switch RY5 and the second resistive elements are in parallel,
First switching switch RY4 and the first common port of the first resistive elements and the zero line of power supply connect, the first switching switch RY4 and the
Second common port of one resistive elements is connected with the second switching switch RY5 and the second resistive elements the first common port, and second cuts
The zero line of the second common port and electrode that change switch RY5 and the second resistive elements connects.
As shown in figure 3, resistive elements are electric capacity, i.e. the first resistive elements are exactly the first electric capacity C1, and the second resistive elements are just
It is the second electric capacity C2.In normal conditions, the first switching switching switches of switch RY4 and second RY5 is closure, passes through relay
Device RY1-RY3 realizes that blower fan 1 is run under high wind, apoplexy and low wind respectively.When in worst cold case, RY3 is closed, now wind
The wind speed of machine 1 or too high, therefore, pass through and disconnect the first switching switching switch RY5 cans of switch RY4 and/or second and realize
The wind speed regulation of different stalls.Specific regulative mode is referring to following table.
Table 1
| RY4 | RY5 | Wind speed |
| Closure | Disconnect | A |
| Disconnect | Closure | B |
| Disconnect | Disconnect | C |
In specific implementation, the second electric capacity C2 capacitance can be set to be more than the capacitance C1 of the first electric capacity, then corresponding wind
Fast C<B<A<Low wind (under conventional operating mode).
Using electric capacity as resistive elements, using capacitive reactance reduction of speed, high conversion efficiency, and active loss is not produced, in the absence of hair
Heat problem.In addition, the quantity of switching switch and the quantity of resistive elements can also be other numerical value in addition to two, quantity is more,
More gear regulations can be then realized, the utility model repeats no more.
On the basis of above-described embodiment, in addition to the resistance in parallel with electric capacity, for energy caused by Absorption Capacitance electric discharge
Amount；
Wherein, when the quantity of electric capacity is two, the quantity of resistance is also two, and is corresponded with electric capacity.
As shown in figure 3, the first electric capacity C1 is in parallel with first resistor R1, the second electric capacity C2 and second resistance R2 are in parallel.Having
During body is implemented, the resistance that can choose resistance is significantly larger than the capacitance of electric capacity so that it is smaller to flow through the electric current of resistance, avoids sending out
Heat.The effect of resistance is mainly discharged electric capacity, prevents wink when the first switching switch RY4, the second switching switch RY5 are closed
Between burnt out by the Short-Circuit High Current of electric capacity.
In above-described embodiment, the alignment circuit of blower fan is described in detail, on the basis of this, the utility model also provides one
Kind includes the blower fan system of the circuit.Fig. 4 is a kind of structure chart for blower fan system that the utility model embodiment provides.Such as Fig. 4
Shown in institute, blower fan system includes blower fan 1 and controller 2, includes the alignment circuit 3 of the blower fan described in above-described embodiment.
Voltage input of the controller 2 as the alignment circuit 3 of blower fan 1, for controlling the size of the electric current on current supply circuit real
Now to the speed governing of blower fan 1.Due to the alignment circuit 3 of blower fan being described in detail in the above-described example, therefore the present embodiment repeats no more.
The blower fan system that the present embodiment provides, includes the alignment circuit of blower fan, and the circuit includes being arranged on the power supply of blower fan
Conventional regulating working conditions circuit on loop, in addition to the worst cold case regulation circuit being connected on current supply circuit, worst cold case are adjusted
Economize on electricity road specifically includes the switching switch and resistive elements being connected in parallel, and switching switch disconnects under worst cold case, to control resistance
Property device access current supply circuit.As can be seen here, by the addition of resistive elements, the electric current on current supply circuit can be reduced so that
The wind speed of blower fan further reduces, to meet the operation of worst cold case.Due in the present embodiment, by resistive elements reduction of speed, no
Harmonic wave is produced, the problem of can avoiding polluting power network, meanwhile, it will not also bring electromagnetism to be mutated and caused electrode noise；Finally,
Device cost used is low, and circuit structure is simple, it is easy to accomplish.
On the basis of above-described embodiment, in addition to the temperature measuring equipment at blower fan 1 is arranged on, temperature measuring equipment and controller 2
Connection, controller 2 control switching to switch on-off according to the signal of temperature measuring equipment.
In order to realize intellectuality, in the present embodiment, by going out to install temperature measuring equipment in blower fan 1, temperature measuring equipment believes temperature
Electric signal transmission corresponding to number parses current temperature according to electric signal to controller 2, controller 2, so as to according to setting in advance
Fixed wind-speed gear control switching switches on-off, and finally realizes the speed governing to blower fan 1.
The alignment circuit and blower fan system of blower fan provided by the utility model are described in detail above.Specification
In each embodiment described by the way of progressive, what each embodiment stressed be it is different from other embodiment it
Place, between each embodiment identical similar portion mutually referring to.For device disclosed in embodiment, due to itself and reality
Apply that method disclosed in example is corresponding, so description is fairly simple, related part is referring to method part illustration.It should refer to
Go out, for those skilled in the art, can also be to this on the premise of the utility model principle is not departed from
Utility model carries out some improvement and modification, and these are improved and modification also falls into the protection domain of the utility model claims
It is interior.
It should also be noted that, in this manual, such as first and second or the like relational terms be used merely to by
One entity or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or operation
Between any this actual relation or order be present.Moreover, term " comprising ", "comprising" or its any other variant meaning
Covering including for nonexcludability, so that process, method, article or equipment including a series of elements not only include that
A little key elements, but also the other element including being not expressly set out, or also include for this process, method, article or
The intrinsic key element of equipment.In the absence of more restrictions, the key element limited by sentence "including a ...", is not arranged
Except other identical element in the process including the key element, method, article or equipment being also present.
Claims (8)
1. a kind of alignment circuit of blower fan, including the conventional regulating working conditions circuit being arranged on the current supply circuit of the blower fan, its
It is characterised by, in addition to the worst cold case regulation circuit being connected on the current supply circuit, the worst cold case regulation circuit tool
Body includes the switching switch and resistive elements being connected in parallel, and the switching switch disconnects under worst cold case, to control the resistance
Property device access the current supply circuit.
2. the alignment circuit of blower fan according to claim 1, it is characterised in that the worst cold case regulation circuit is arranged on
Between the zero line of the zero line of power supply and the blower fan.
3. the alignment circuit of blower fan according to claim 2, it is characterised in that the quantity of the switching switch is two,
Respectively first switching switch and the second switching switch, and the quantity of the resistive elements is two, respectively the first resistive elements
With the second resistive elements, specific annexation is：
The first switching switch and first resistive elements are in parallel, the second switching switch and second resistive elements
First common port of parallel connection, the first switching switch and first resistive elements is connected with the zero line of the power supply, described
Second common port of the first switching switch and first resistive elements and the described second switching switch and the second resistive device
The second common port and the power supply of the first common port connection of part, the second switching switch and second resistive elements
Zero line connects.
4. the alignment circuit of the blower fan according to claim 1-3 any one, it is characterised in that the resistive elements are electricity
Hold.
5. the alignment circuit of blower fan according to claim 4, it is characterised in that also include the electricity in parallel with the electric capacity
Resistance, for absorbing energy caused by the electric capacity electric discharge；
Wherein, when the quantity of the electric capacity is two, the quantity of the resistance is also two, and with a pair of the electric capacity 1
Should.
6. the alignment circuit of blower fan according to claim 1, it is characterised in that the switching switch is relay.
7. a kind of blower fan system, including blower fan and controller, it is characterised in that also including described in claim 1-6 any one
Blower fan alignment circuit.
8. blower fan system according to claim 7, it is characterised in that also include being arranged on the temperature measuring equipment at blower fan, institute
State temperature measuring equipment to be connected with the controller, the controller controls the logical of switching switch according to the signal of the temperature measuring equipment
It is disconnected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720551642.XU CN207051751U (en) | 2017-05-17 | 2017-05-17 | The alignment circuit and blower fan system of a kind of blower fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720551642.XU CN207051751U (en) | 2017-05-17 | 2017-05-17 | The alignment circuit and blower fan system of a kind of blower fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207051751U true CN207051751U (en) | 2018-02-27 |
Family
ID=61490778
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720551642.XU Expired - Fee Related CN207051751U (en) | 2017-05-17 | 2017-05-17 | The alignment circuit and blower fan system of a kind of blower fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207051751U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469531A (en) * | 2019-07-31 | 2019-11-19 | 亿轶环境科技(上海)有限公司 | The control device and method of frequency conversion fan for purifying and sterilizing device |
| CN111780377A (en) * | 2020-06-16 | 2020-10-16 | 珠海格力电器股份有限公司 | Fan rotating speed control method and device and air conditioning equipment |
-
2017
- 2017-05-17 CN CN201720551642.XU patent/CN207051751U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469531A (en) * | 2019-07-31 | 2019-11-19 | 亿轶环境科技(上海)有限公司 | The control device and method of frequency conversion fan for purifying and sterilizing device |
| CN110469531B (en) * | 2019-07-31 | 2024-06-07 | 亿轶环境科技(上海)有限公司 | Control device and method for variable frequency fan of purification and disinfection device |
| CN111780377A (en) * | 2020-06-16 | 2020-10-16 | 珠海格力电器股份有限公司 | Fan rotating speed control method and device and air conditioning equipment |
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Granted publication date: 20180227 |