CN206225995U - The typhoon power protecting circuit of outdoor fan, outdoor unit and air-conditioner in air-conditioner - Google Patents
The typhoon power protecting circuit of outdoor fan, outdoor unit and air-conditioner in air-conditioner Download PDFInfo
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- CN206225995U CN206225995U CN201621272250.1U CN201621272250U CN206225995U CN 206225995 U CN206225995 U CN 206225995U CN 201621272250 U CN201621272250 U CN 201621272250U CN 206225995 U CN206225995 U CN 206225995U
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Abstract
The utility model discloses the typhoon power protecting circuit of outdoor fan, outdoor unit and air-conditioner in a kind of air-conditioner, the circuit includes：Frequency converter, it includes three-phase inversion unit and control unit, and the DC terminal of three-phase inversion unit is used to connect high-voltage DC power supply, and the three-phase output end of three-phase inversion unit is used to connect the motor in outdoor fan；Two-phase gate-controlled switch, it is connected between any two phase output terminal in three-phase output end and motor, and the control end of two-phase gate-controlled switch is connected with control unit, wherein, when air-conditioner is shut down, control unit control two-phase gate-controlled switch disconnects.Thus; according to the utility model proposes protection circuit shut down by the connection that two-phase gate-controlled switch disconnects frequency converter and motor in air-conditioner; so as to the induced voltage for avoiding the motor of outdoor fan under State of Typhoon causes frequency converter DC terminal overvoltage; the wind-induced electronic device of platform is avoided to damage; improve the reliability of product; economic loss is reduced, Consumer's Experience is improved.
Description
Technical field
The utility model is related to air-conditioner technical field, and the typhoon power supply of outdoor fan is protected in more particularly to a kind of air-conditioner
Protection circuit, a kind of outdoor unit and a kind of air-conditioner with the protection circuit.
Background technology
Air-conditioner in correlation technique is operated by transducer drive outdoor fan.In the related art, in air-conditioner
If outdoor fan runs into exogenous wind (typhoon or violent typhoon), the motor under stopped status can also be rotated.If
Exogenous wind wind speed is larger, then the rotating speed of motor is higher, and motor itself produces larger induced voltage, the regeneration electricity that induced voltage causes
Pressure reduces product if it exceeds the pressure voltage of the electronic device (such as electric capacity) in frequency converter, then can cause electronic device to damage
The reliability of product, causes economic loss, and Consumer's Experience is poor.
Utility model content
The utility model is intended at least solve to a certain extent one of technical problem in correlation technique.Therefore, this reality
It is the typhoon power protecting circuit for proposing outdoor fan in a kind of air-conditioner with a new purpose, the protection circuit can be with
Solve the problems, such as that the wind-induced electronic device of platform is damaged.
Another purpose of the present utility model is to propose a kind of outdoor unit.Another purpose of the present utility model is to carry
Go out a kind of air-conditioner.
To reach above-mentioned purpose, the typhoon power supply that on the one hand the utility model proposes outdoor fan in a kind of air-conditioner is protected
Protection circuit, including：Frequency converter, the frequency converter include three-phase inversion unit and control unit, the three-phase inversion unit it is straight
Stream end is used to connect high-voltage DC power supply, and the three-phase output end of the three-phase inversion unit is used to connect in the outdoor fan
Motor；Two-phase gate-controlled switch, the two-phase gate-controlled switch is connected to any two phase output terminal and institute in the three-phase output end
State between motor, the control end of the two-phase gate-controlled switch is connected with described control unit, wherein, when the air-conditioner is shut down
Described control unit controls the two-phase gate-controlled switch to disconnect.
According to the utility model proposes air-conditioner in outdoor fan typhoon power protecting circuit, opened by the way that two-phase is controllable
Connection is connected between any two phase output terminal in the three-phase output end of frequency converter and motor, when air-conditioner startup work, three
Any two phase output terminal of phase inversion unit is connected by two-phase gate-controlled switch with the motor in outdoor fan, when air-conditioner is shut down
When, control unit control two-phase gate-controlled switch disconnects.It follows that protection circuit of the present utility model is led to when air-conditioner is shut down
The connection that two-phase gate-controlled switch disconnects frequency converter and motor is crossed, so as to avoid the induced electricity of the motor of outdoor fan under State of Typhoon
Pressure causes frequency converter DC terminal overvoltage, it is to avoid the wind-induced electronic device of platform is damaged, and improves the reliability of product, reduces warp
Ji loss, improves Consumer's Experience.
Specifically, the two-phase gate-controlled switch can be relay, and the relay is connected to by the way of the contact of 2 pole 1
Between any two phase output terminal and the motor.
Specifically, the three-phase inversion unit includes the first to the 6th switching tube, first switch pipe and second switch pipe structure
Into the first bridge arm, the 3rd switching tube and the 4th switching tube constitute the second bridge arm, and the 5th switching tube and the 6th switching tube constitute the 3rd
Bridge arm, first bridge arm has first node, and second bridge arm has Section Point, and the 3rd bridge arm has Section three
Point, the first node, the Section Point and the 3rd node constitute the three-phase output end.
Preferably, the described first to the 6th switching tube can be IGBT or MOSFET.
To reach above-mentioned purpose, in a kind of outdoor unit that on the other hand the utility model proposes, including described air-conditioner
The typhoon power protecting circuit of outdoor fan.
According to the utility model proposes outdoor unit, by above-mentioned air-conditioner outdoor fan typhoon power protection electricity
Road, the connection that two-phase gate-controlled switch disconnects frequency converter and motor is shut down by air-conditioner, so as to avoid room under State of Typhoon
The induced voltage of the motor of outer blower fan causes frequency converter DC terminal overvoltage, it is to avoid the wind-induced electronic device of platform is damaged, and is improved
The reliability of product, reduces economic loss, improves Consumer's Experience.
To reach above-mentioned purpose, the another aspect of the utility model proposes a kind of air-conditioner, including described outdoor unit.
According to the utility model proposes air-conditioner, by above-mentioned outdoor unit, shut down by two-phase in air-conditioner controllable
The connection of frequency converter and motor is switched off, so as to the induced voltage for avoiding the motor of outdoor fan under State of Typhoon causes frequency conversion
Device DC terminal overvoltage, it is to avoid the wind-induced electronic device of platform is damaged, and improves the reliability of product, reduces economic loss, is carried
Consumer's Experience is risen.
Brief description of the drawings
Fig. 1 is that the square frame of the typhoon power protecting circuit of outdoor fan in air-conditioner according to the utility model embodiment shows
It is intended to；
Fig. 2 is the electricity of the typhoon power protecting circuit of outdoor fan in air-conditioner according to the utility model one embodiment
Road schematic diagram；
Fig. 3 a are the side views of the wind wheel blade of outdoor fan in air-conditioner according to the utility model one embodiment；
Fig. 3 b are that the structure of the wind wheel blade of outdoor fan in air-conditioner according to another embodiment of the utility model is shown
It is intended to；
Fig. 3 c are the front views of the wind wheel blade of outdoor fan in air-conditioner according to the utility model one embodiment；
Fig. 4 is the block diagram of the outdoor unit according to the utility model embodiment；And
Fig. 5 is the block diagram of the air-conditioner according to the utility model embodiment.
Reference：
Frequency converter 10, two-phase gate-controlled switch 20, high-voltage DC power supply 30 and motor 40；
Three-phase inversion unit 101 and control unit 102；
The switching tube Q6 of first switch pipe Q1 to the 6th；
The typhoon power protecting circuit 100 of outdoor fan, outdoor unit 200 and air-conditioner 300 in air-conditioner.
Specific embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein ad initio
Same or similar element or element with same or like function are represented to same or similar label eventually.Below by ginseng
The embodiment for examining Description of Drawings is exemplary, it is intended to for explaining the utility model, and it is not intended that to the utility model
Limitation.
Below with reference to the accompanying drawings protected come the typhoon power supply of outdoor fan in the air-conditioner for describing the proposition of the utility model embodiment
Protection circuit, outdoor unit and air-conditioner with the protection circuit.
Fig. 1 is that the square frame of the typhoon power protecting circuit of outdoor fan in air-conditioner according to the utility model embodiment shows
It is intended to.As shown in figure 1, the typhoon power protecting circuit includes：Frequency converter 10 and two-phase gate-controlled switch 20.
Wherein, frequency converter 10 includes three-phase inversion unit 101 and control unit 102, the DC terminal of three-phase inversion unit 101
It is used to connect high-voltage DC power supply 30, the three-phase output end of three-phase inversion unit 101 is used to connect the motor 40 in outdoor fan；
Two-phase gate-controlled switch 20 is connected between any two phase output terminal in three-phase output end and motor 40, two-phase gate-controlled switch 20
Control end is connected with control unit 102, wherein, when air-conditioner is shut down, the control two-phase of control unit 102 gate-controlled switch 20 disconnects.
According to one embodiment of the present utility model, two-phase gate-controlled switch 20 can be relay, and relay is connect using 2 poles 1
The mode of point is connected between any two phase output terminal and motor 40.
For example, as shown in Fig. 2 B ends and C-terminal in three-phase output end A, B, C of three-phase inversion unit 101 pass through two
Phase gate-controlled switch 20 is connected with the V phase windings and W phase windings of motor 40 respectively, and the A ends in three-phase output end A, B, C and motor
40 U phase windings are joined directly together.In air-conditioner startup work, two-phase gate-controlled switch 20 is closed, and three-phase inversion unit 101 pairs is high
The direct current that pressure dc source 30 is provided carries out inversion and processes to export three-phase alternating current, and three-phase alternating current is supplied into motor
40, think that motor 40 is powered.When air-conditioner is stopped, the control two-phase of control unit 102 gate-controlled switch 20 disconnects, three contraries
B ends and C-terminal in the three-phase output end of change unit 101 disconnect the connection with the V phase windings and W phase windings of motor 40, frequency converter
Loop between 10 and motor 40 disconnects, and so, when typhoon is met with, the rotor of the wind wheel drive motor 40 of outdoor fan occurs
Rotate, the magnetic field of the rotor cutting motor 40 of motor 40 produces induced voltage, motor 40 induced voltage of itself will not cause change
The DC terminal overvoltage of frequency device 10.
Thus, it is possible to avoid the wind-induced electronic device of platform from damaging, power circuit is effectively protected, improve product
Reliability, reduce economic loss, improve Consumer's Experience.
According to one embodiment of the present utility model, as shown in Fig. 2 three-phase inversion unit 101 includes first switch pipe Q1
The first bridge arm, the switches of the 3rd switching tube Q3 and the 4th are constituted to the 6th switching tube Q6, first switch pipe Q1 and second switch pipe Q2
Pipe Q4 constitutes the second bridge arm, and the 5th switching tube Q5 and the 6th switching tube Q6 constitutes the 3rd bridge arm, and the first bridge arm has first node,
Second bridge arm has Section Point, and the 3rd bridge arm has the 3rd node, and first node, Section Point and the 3rd node constitute three-phase
Output end.
According to a specific embodiment of the present utility model, the switching tube Q6 of first switch pipe Q1 to the 6th can for IGBT pipes or
MOSFET is managed.
Specifically, in air-conditioner startup work, the control two-phase of control unit 102 gate-controlled switch 20 is closed, frequency converter
10 driver element drives the switching tube Q6 of first switch pipe Q1 to the 6th to be turned on and off according to default rule, with to HVDC
The direct current that power supply 30 is provided carries out inversion treatment, and three-phase alternating current after inversion is processed is supplied to motor 40, thinks electricity
Machine 40 is powered.When air-conditioner is stopped, the control two-phase of control unit 102 gate-controlled switch 20 disconnects, and frequency converter 10 stops dynamic
Make, the switching tube Q6 of first switch pipe Q1 to the 6th are turned off, when exogenous wind acts on outdoor fan, the induced voltage of motor 40 is produced
DC voltage Vdc be loaded directly on three bridge arms of three-phase inversion unit 101, wherein, first switch pipe Q1 and second is opened
The voltage for closing pipe Q2 two ends is respectively Vdc/2, and the voltage at the 3rd switching tube Q3 and the 4th switching tube Q4 two ends is respectively Vdc/2,
The voltage at the 5th switching tube Q5 and the 6th switching tube Q6 two ends is respectively Vdc/2.Because the pressure voltage of IGBT pipes generally can be
The pressure voltage of 600V, MOSFET pipe generally can be 500V.So, even if DC voltage Vdc reaches 1000V, it is not more than
The pressure voltage of the one switching tube Q6 of switching tube Q1 to the 6th.
Further, the DC terminal parallel electrolytic electric capacity of frequency converter 10, electrochemical capacitor is used to be filtered direct current at place
Reason, wherein, the rated voltage of electrochemical capacitor generally can be direct current 400V, the voltage of the maximum surge voltage that electrochemical capacitor can bear
It is 450V to be worth, and relative to IGBT pipes or the pressure voltage of MOSFET pipes, the pressure voltage of electrochemical capacitor is relatively low.So, only electricity need to be set
The value of the induced voltage constant Ke of machine 40, so that when typhoon is met with, the DC voltage Vdc that the induced voltage of motor 40 is produced is low
In the pressure voltage (such as the magnitude of voltage 450V of maximum surge voltage) of electrochemical capacitor, you can avoid the wind-induced electronic device of platform
Damage, power circuit is effectively protected.
The work of the typhoon power protecting circuit of outdoor fan in the air-conditioner of the utility model embodiment is detailed below
Make principle.
Specifically, when typhoon is met with, typhoon acts on outdoor fan, and the external force of generation rotates motor 40,
The interlinkage flux in rotary course of motor 40 produces induced voltage, it is assumed that the phase voltage of motor 40 is respectively Vu, Vv and Vw, motor
40 line voltage is respectively Vuv, Vvw and Vwu, wherein, the magnitude of voltage of line voltage is the magnitude of voltage of phase voltageTimes, for example
In embodiment of the present utility model, the induced voltage constant Ke of motor 40 can be in rotating speed by motor 40
The virtual value of the phase voltage Vu (Vv, Vw) during 1000rpm, i.e. induced voltage E is determined, and meets formula Ke=1000*E/Ns.By
There is no external output voltage in the neutral point of motor 40, when the rotating speed Ns of motor 40 is 1000rpm, according to the sensing of motor 40
Voltage constant Ke understands the phase voltage Vu of motor 40, by formulaCalculate the line voltage (such as Vuv) of motor 40.
When two-phase gate-controlled switch 20 disconnects, motor 40 is unloaded, and rotate generation induced voltage, motor 40 itself under exogenous wind effect
Induced voltage be directly proportional to revolution, therefore, induced voltage of the motor 40 under free rotating speed Ns can be converted into 1000rpm to be carried out
Calculate.
For example, if the induced voltage constant Ke of motor 40 is 100V/krpm, motor 40 is under exogenous wind effect
When rotating speed Ns is 1000rpm, the phase voltage of motor 40 is 100V, and now, the virtual value of the line voltage of motor 40 is phase voltageIt is again 173V, the maximum voltage value of motor 40 is phase voltageIt is again 245V, and the induced voltage of motor 40 carries out three-phase
The DC voltage exported after full-wave rectification is 245V.
With reference to Fig. 3 a, 3b and 3c, with typhoon wind speed v=40m/s, the wind wheel model ZL-700* of outdoor fan
As a example by 202*20-3N, the rotating speed Ns (rps) of external wind-induced motor 40 is derived.
1) as shown in Fig. 3 a and Fig. 3 c, wind wheel is arranged on motor 40, when there is no exogenous wind in the course of work of air-conditioner, and
When motor 40 drives wind wheel to rotate, it is assumed that the air quantity that wind wheel is produced is Q (m3/ s), the area of wind wheel is S (m2), the blade of wind wheel
Number is nh, and the height of wind wheel is d (m), and the radical length of the appearance and size of wind wheel is a (m), and the radial direction of wind wheel installation portion is long
It is b (m) to spend, and air quantity Q and typhoon wind speed v meets following formula：
Wherein, air quantity Q meets following formula：
It can be seen from model ZL-700*202*20-3N according to wind wheel, a=700mm, b=155.9mm, d=202mm, nh=
3, the area of wind wheelFollowing formula can be obtained with reference to formula (1) and (2)：
Data are substituted into formula (2) respectively and formula (3) understand,
V=d × nh × Ns=0.202 × 3 × Ns=0.606 × Ns (5)
When the rotating speed Ns of motor 40 is 1000rpm (i.e. 16.67rps), the wind wheel of model ZL-700*202*20-3N
Wind speed v=0.606 × 16.67=10.1 (m/s).
2) as shown in Figure 3 b, when exogenous wind is acted on wind wheel blade, wind wheel is rotated, on the one hand, due to wind wheel leaf
The shape of piece so that exogenous wind directed force F 1 is converted into rotating force F2 and the directed force F 3 perpendicular to ground, causes wind speed to drop
It is low；On the other hand, the heat exchanger of outdoor unit hinders equivalent to wind-powered electricity generation, also results in wind speed reduction.Therefore, when typhoon is met with,
Exogenous wind acts on the wind speed reduction of wind wheel blade, and the conversion efficiency of wind speed can be η, wherein, the shape of conversion efficiency η and wind wheel and
The specification of the heat exchanger of outdoor unit is relevant.
According to a specific embodiment of the present utility model, conversion efficiency η can be 70%.If exogenous wind wind speed v=
10.1m/s, then the rotating speed Ns ≈ 1000rpm × 70%=700rpm of motor 40.If motor 40 is unloaded, motor 40 is in exogenous wind
Rotated freely under effect, the rotating speed Ns of motor 40 is directly proportional to exogenous wind wind speed v.That is, when exogenous wind demeanour v is 40m/s,
The rotating speed of motor 40
Assuming that exogenous wind wind speed reaches 40m/s when typhoon is met with, and the radial direction of the appearance and size of the wind wheel of outdoor fan is long
Spend for a is 700mm, the height of wind wheel is that d is 202mm, and the blade number nh of wind wheel is 3, and the conversion efficiency η of wind speed is
70%, understood by above-mentioned analysis, the rotating speed Ns of motor 40 is 2772rpm.It can be seen from formula Ke=1000*E/Ns, if
It is required that the DC voltage Vdc that the induced voltage of motor 40 is produced is less than 450V, then the induced voltage constant Ke of motor 40 needs to meet
Following relationship：
According to a specific embodiment of the present utility model, the model of motor 40 can be Panasonic WZDK100-38G,
The induced voltage constant Ke of motor 40 is 74.56V/krpm, the DC voltage of the induced voltage generation of motor 40Because actual pressure voltage of the electrochemical capacitor under normal temperature (such as 20 DEG C) is
550V, therefore, electrochemical capacitor will not be damaged.
It should be noted that the wind wheel of outdoor fan is different, the induced voltage constant Ke of motor 40 is also required to do corresponding
Adjustment, pressure voltages of the DC voltage Vdc less than electrochemical capacitor produced with the induced voltage for ensureing the motor 40 when typhoon is met with.
To sum up, according to the utility model embodiment propose air-conditioner in outdoor fan typhoon power protecting circuit, lead to
Cross between any two phase output terminal and motor that two-phase gate-controlled switch is connected in the three-phase output end of frequency converter, when air-conditioner is opened
When starting building to make, any two phase output terminal of three-phase inversion unit is connected by two-phase gate-controlled switch with the motor in outdoor fan,
When air-conditioner is shut down, control unit control two-phase gate-controlled switch disconnects.It follows that protection circuit of the present utility model is in sky
Device is adjusted to shut down by the connection that two-phase gate-controlled switch disconnects frequency converter and motor, so as to avoid outdoor fan under State of Typhoon
The induced voltage of motor causes frequency converter DC terminal overvoltage, it is to avoid the wind-induced electronic device of platform is damaged, and improves product
Reliability, reduces economic loss, improves Consumer's Experience.
Fig. 4 is the block diagram of the outdoor unit according to the utility model embodiment.As shown in figure 4, the outdoor unit 200 is wrapped
Include the typhoon power protecting circuit 100 of outdoor fan in air-conditioner.
To sum up, the outdoor unit for being proposed according to the utility model embodiment, by the typhoon of outdoor fan in above-mentioned air-conditioner
Power protecting circuit, shuts down by the connection that two-phase gate-controlled switch disconnects frequency converter and motor, so as to avoid platform in air-conditioner
The induced voltage of the motor of outdoor fan causes frequency converter DC terminal overvoltage to frequency converter under wind state, it is to avoid platform is wind-induced
Electronic device is damaged, and power circuit is effectively protected, and improves the reliability of product, reduces economic loss, improves use
Experience at family.
Fig. 5 is the block diagram of the air-conditioner according to the utility model embodiment.As shown in figure 5, the air-conditioner 300 is wrapped
Include outdoor unit 200.
To sum up, the air-conditioner for being proposed according to the utility model embodiment, by above-mentioned outdoor unit, leads to when air-conditioner is shut down
The connection that two-phase gate-controlled switch disconnects frequency converter and motor is crossed, so as to avoid the induced electricity of the motor of outdoor fan under State of Typhoon
Pressure causes frequency converter DC terminal overvoltage, it is to avoid the wind-induced electronic device of platform is damaged, and power circuit is effectively protected, and is carried
The reliability of product high, reduces economic loss, improves Consumer's Experience.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outward ", " suitable
The orientation or position relationship of the instruction such as hour hands ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " are based on orientation shown in the drawings
Or position relationship, be for only for ease of description the utility model and simplify and describe, rather than indicate or imply signified device or
Element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limit of the present utility model
System.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include at least one this feature.In description of the present utility model, " multiple " is meant that at least two, such as two
It is individual, three etc., unless otherwise expressly limited specifically.
In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. term should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integrally；Can be
Mechanically connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be two
The connection of element internal or two interaction relationships of element, unless otherwise clearly restriction.For the common skill of this area
For art personnel, concrete meaning of the above-mentioned term in the utility model can be as the case may be understood.
In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score
Can be the first and second feature directly contacts, or the first and second features are by intermediary mediate contact.And, first is special
Levy second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only
Represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be with
Be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or spy that the embodiment or example are described
Point is contained at least one embodiment of the present utility model or example.In this manual, to the schematic table of above-mentioned term
State and be necessarily directed to identical embodiment or example.And, the specific features of description, structure, material or feature can be with
Combined in an appropriate manner in any one or more embodiments or example.Additionally, in the case of not conflicting, this area
Technical staff the feature of the different embodiments or example described in this specification and different embodiment or example can be entered
Row is combined and combined.
Although embodiment of the present utility model has been shown and described above, it is to be understood that above-described embodiment is
Exemplary, it is impossible to it is interpreted as to limitation of the present utility model, one of ordinary skill in the art is in scope of the present utility model
It is interior above-described embodiment to be changed, changed, replaced and modification.
Claims (6)
1. in a kind of air-conditioner outdoor fan typhoon power protecting circuit, it is characterised in that including：
Frequency converter, the frequency converter includes three-phase inversion unit and control unit, and the DC terminal of the three-phase inversion unit is used to
Connection high-voltage DC power supply, the three-phase output end of the three-phase inversion unit is used to connect the motor in the outdoor fan；
Two-phase gate-controlled switch, the two-phase gate-controlled switch be connected to any two phase output terminal in the three-phase output end with it is described
Between motor, the control end of the two-phase gate-controlled switch is connected with described control unit, wherein, shut down when institute in the air-conditioner
Stating control unit controls the two-phase gate-controlled switch to disconnect.
2. in air-conditioner according to claim 1 outdoor fan typhoon power protecting circuit, it is characterised in that described two
Phase gate-controlled switch be relay, the relay be connected to by the way of the contact of 2 pole 1 any two phase output terminal with it is described
Between motor.
3. in air-conditioner according to claim 1 outdoor fan typhoon power protecting circuit, it is characterised in that described three
Phase inversion unit includes the first to the 6th switching tube, and first switch pipe constitutes the first bridge arm, the 3rd switching tube with second switch pipe
The second bridge arm is constituted with the 4th switching tube, the 5th switching tube and the 6th switching tube constitute the 3rd bridge arm, and first bridge arm has
First node, second bridge arm has a Section Point, and the 3rd bridge arm has the 3rd node, the first node, described
Section Point and the 3rd node constitute the three-phase output end.
4. in air-conditioner according to claim 3 outdoor fan typhoon power protecting circuit, it is characterised in that described
One to the 6th switching tube is IGBT or MOSFET.
5. a kind of outdoor unit, it is characterised in that including outdoor fan in the air-conditioner according to any one of claim 1-4
Typhoon power protecting circuit.
6. a kind of air-conditioner, it is characterised in that including outdoor unit according to claim 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621272250.1U CN206225995U (en) | 2016-11-22 | 2016-11-22 | The typhoon power protecting circuit of outdoor fan, outdoor unit and air-conditioner in air-conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621272250.1U CN206225995U (en) | 2016-11-22 | 2016-11-22 | The typhoon power protecting circuit of outdoor fan, outdoor unit and air-conditioner in air-conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206225995U true CN206225995U (en) | 2017-06-06 |
Family
ID=58785711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621272250.1U Expired - Fee Related CN206225995U (en) | 2016-11-22 | 2016-11-22 | The typhoon power protecting circuit of outdoor fan, outdoor unit and air-conditioner in air-conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206225995U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107994545A (en) * | 2017-12-12 | 2018-05-04 | 深圳市英威腾电气股份有限公司 | The protection circuit and electric system of a kind of wind turbine |
| CN113811723A (en) * | 2019-05-20 | 2021-12-17 | 三菱电机株式会社 | Outdoor unit, air-conditioning apparatus, and operation control method for air-conditioning apparatus |
-
2016
- 2016-11-22 CN CN201621272250.1U patent/CN206225995U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107994545A (en) * | 2017-12-12 | 2018-05-04 | 深圳市英威腾电气股份有限公司 | The protection circuit and electric system of a kind of wind turbine |
| CN113811723A (en) * | 2019-05-20 | 2021-12-17 | 三菱电机株式会社 | Outdoor unit, air-conditioning apparatus, and operation control method for air-conditioning apparatus |
| US11802708B2 (en) | 2019-05-20 | 2023-10-31 | Mitsubishi Electric Corporation | Outdoor unit, air conditioner, and operation control method for air conditioner |
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Granted publication date: 20170606 Termination date: 20201122 |