CN207588004U - A kind of rotation speed of fan test circuit, air-conditioner outdoor unit and air-conditioning - Google Patents
A kind of rotation speed of fan test circuit, air-conditioner outdoor unit and air-conditioning Download PDFInfo
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- CN207588004U CN207588004U CN201721624320.XU CN201721624320U CN207588004U CN 207588004 U CN207588004 U CN 207588004U CN 201721624320 U CN201721624320 U CN 201721624320U CN 207588004 U CN207588004 U CN 207588004U
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Abstract
The utility model discloses a kind of rotation speed of fan test circuit, air-conditioner outdoor unit and air-conditioning, test circuit includes ground wire terminal, at least three calibrating terminals, at least three relays；Coil one end connection DC power supply of first relay, the other end connect the first calibrating terminal；The normally opened stationary contact of first relay connects the first gear terminal, the movable contact connection firewire of the first relay；Coil one end connection DC power supply of second relay, the other end connect the second calibrating terminal；The normally closed stationary contact and movable contact of second relay are connected between the movable contact and firewire of the first relay, and the normally opened stationary contact of the second relay connects the second gear terminal；Coil one end connection DC power supply of third relay, other end connection third calibrating terminal；The normally closed stationary contact and movable contact of third relay are connected between the movable contact and firewire of the second relay；The normally opened stationary contact connection third gear terminal of third relay.The utility model improves testing efficiency.
Description
Technical field
The utility model belongs to test circuit technical field, specifically, being to be related to a kind of rotation speed of fan test circuit, sky
Adjust outdoor unit and air-conditioning.
Background technology
Influence of the performance quality of outdoor fan to entire air-conditioning is very big, therefore the rotating speed of outdoor fan has to survey
Examination, otherwise it is difficult to ensure that offline product over-all properties is met the requirements.Outdoor alternating-current fan rotation speed is not manually controllable, before manufacture
The rate performance hell to pay after testing of electric motors matching complete machine load is wanted, influences production test efficiency.
At present there are two types of rotation speed of fan testing schemes：
First, the detection of the different wind speed of electricity realization is individually connect by motor gear line.But the independent wiring test of motor is very
Cumbersome, efficiency is low, and there are security risks.
Second is that outdoor unit is connected with indoor unit, wind speed is realized by changing actual environment operating mode or changing each resistance of sensor
Detection.Test room will realize change Operating condition adjustment measurement of rotating speed, not only influence efficiency but also waste of resource.
Invention content
The utility model provides a kind of rotation speed of fan test circuit, solves the problems, such as that testing efficiency is low.
In order to solve the above technical problems, the utility model is achieved using following technical scheme：
A kind of rotation speed of fan test circuit, the wind turbine have public terminal and at least three gear terminals：First gear
Terminal, the second gear terminal, third gear terminal, the public terminal connect zero curve；The test circuit include ground wire terminal,
At least three calibrating terminals：First calibrating terminal, the second calibrating terminal, third calibrating terminal, at least three relays：First after
Electric appliance, the second relay, third relay；The quantity of the calibrating terminal, the quantity of relay and the quantity phase of gear terminal
Together；The calibrating terminal, relay, gear terminal correspond；The ground wire terminal ground connection；The coil of first relay
One end connects DC power supply, and the other end connects corresponding first calibrating terminal；The normally opened stationary contact connection of first relay
Corresponding first gear terminal, the movable contact connection firewire of first relay；Coil one end of second relay connects
DC power supply is connect, the other end connects corresponding second calibrating terminal；The normally closed stationary contact of second relay and movable contact string
It is associated between the movable contact and firewire of the first relay, the normally opened stationary contact of second relay connects corresponding second gear
Terminal；Coil one end connection DC power supply of the third relay, the other end connect corresponding third calibrating terminal；Described
The normally closed stationary contact and movable contact of three relays are connected between the movable contact and firewire of the second relay, the third relay
Normally opened stationary contact connect corresponding third gear terminal.
Further, the first diode, first diode are parallel at the both ends of the coil of first relay
Anode connect the first calibrating terminal, cathode connects the DC power supply;It is in parallel at the both ends of the coil of second relay
There is the second diode, the anode of second diode connects the second calibrating terminal, and cathode connects the DC power supply;Described
The both ends of the coil of third relay are parallel with third diode, and the anode of the third diode connects third calibrating terminal,
Cathode connects the DC power supply.
Further, it is respectively connected with braking absorption circuit between each gear terminal and zero curve.
Further, there are three gear terminals for the wind turbine tool：First gear terminal, the second gear terminal, third gear
Position terminal, the test circuit include three calibrating terminals：First calibrating terminal, the second calibrating terminal, third calibrating terminal, institute
It states test circuit and includes three relays：First relay, the second relay, third relay.
Further, the first gear terminal is high gear terminal, and the second gear terminal is middling speed gear
Terminal, the third gear terminal are low gear terminal；Braking absorption is connected between the third gear terminal and zero curve
Circuit.
Preferably, the braking absorption circuit is the resistance and capacitance of series connection.
Preferably, be provided with socket in the test circuit, the socket draws four cables, respectively with the first relay
The normally opened stationary contact of device, the normally opened stationary contact of the second relay, third relay normally opened stationary contact, zero curve be correspondingly connected with；Institute
The first gear terminal, the second gear terminal, third gear terminal, the public terminal for stating wind turbine are connect with a plug, the plug
It is connect with socket.
Preferably, first calibrating terminal, the second calibrating terminal, third calibrating terminal, ground wire terminal are integrated into one
In terminal block.
Based on the design of above-mentioned test circuit, the utility model also proposed a kind of air-conditioner outdoor unit, including wind turbine and master
Plate is controlled, the master control borad includes the test circuit.
Based on the design of above-mentioned air-conditioner outdoor unit, the utility model also proposed a kind of air-conditioning, including air conditioner indoor unit with
And the air-conditioner outdoor unit, the indoor unit are connected with outdoor unit.
Compared with prior art, the advantages of the utility model and good effect is：The rotation speed of fan test of the utility model
Circuit, air-conditioner outdoor unit and air-conditioning by short circuit ground wire terminal and corresponding calibrating terminal, realize that wind turbine is turned with corresponding gear
Speed operating realizes the test to rotation speed of fan, and simple and safe effectively testing efficiency is high, solves test effect in the prior art
The problem of rate is low saves the production test time, effectively increases testing efficiency.
After the detailed description of the utility model embodiment is read in conjunction with the figure, other features and advantages of the utility model
It will become clearer.
Description of the drawings
Fig. 1 is the structure diagram of one embodiment of rotation speed of fan test circuit that the utility model is proposed；
Fig. 2 is the structure diagram of one embodiment of the master control borad for the air-conditioner outdoor unit that the utility model is proposed.
Specific embodiment
Specific embodiment of the present utility model is described in more detail below in conjunction with the accompanying drawings.
The present embodiment proposes a kind of rotation speed of fan test circuit, and wind turbine has public terminal N and at least three gear ends
Son：First gear terminal HFAN, the second gear terminal MFAN, third gear terminal LFAN, public terminal N connection zero curve；When
During one gear terminal HFAN connection firewires, wind turbine is with the first gear rotation speed operation；When the second gear terminal MFAN connection firewires,
Wind turbine is with the second gear rotation speed operation；When third gear terminal LFAN connection firewires, wind turbine is with third gear rotation speed operation.
The test circuit of the present embodiment mainly includes ground wire terminal, at least three calibrating terminals：First calibrating terminal H,
Two calibrating terminal M, third calibrating terminal L and at least three relays：First relay K1, the second relay K3, third after
Electric appliance K3.The quantity of calibrating terminal, the quantity of relay are identical with the quantity of gear terminal；Calibrating terminal, relay, gear end
Son corresponds；Ground wire terminal is grounded GND, shown in Figure 1.
Coil one end connection DC power supply VCC of first relay K1, the coil other end connect corresponding first test lead
Sub- H；The normally opened stationary contact of first relay K1 connects the movable contact connection firewire of corresponding first gear terminal HFAN, K1.The
When the coil of one relay K1 must not be electric, movable contact is disconnected with normally opened stationary contact；When coil obtains electric, movable contact and normally opened stationary contact
Connection.
Coil one end connection DC power supply VCC of second relay K2, the coil other end connect corresponding second test lead
Sub- M；The normally closed stationary contact and movable contact of second relay K2 is connected between the movable contact and firewire of the first relay K1, and second
The normally opened stationary contact of relay K2 connects corresponding second gear terminal MFAN.When the coil of second relay K2 must not be electric, K2
Movable contact connected with normally closed stationary contact；When coil obtains electric, movable contact is connect with normally opened stationary contact.That is the second relay K2's touches
Point is " single-pole double throw ".
Coil one end connection DC power supply VCC of third relay K3, the coil other end connect corresponding third test lead
Sub- L；The normally closed stationary contact and movable contact of third relay K3 is connected between the movable contact and firewire of the second relay K2；Third
The normally opened stationary contact of relay K3 connects corresponding third gear terminal LFAN.When the coil of third relay K3 must not be electric, K3
Movable contact connected with normally closed stationary contact；When coil obtains electric, movable contact is connect with normally opened stationary contact.That is third relay K3's touches
Point is " single-pole double throw ".
In the present embodiment, DC power supply VCC is 12V, less than human safety voltage, ensures tester's safety.
As short circuit the first calibrating terminal H and ground wire terminal, the electric current that DC power supply VCC is provided passes through the first relay K1
Coil, the first calibrating terminal H, ground wire terminal flow into ground, the coil of the first relay K1 powers on, and the dynamic of the first relay K1 touches
Point is connect with normally opened stationary contact, and the first gear terminal HFAN is connect with firewire, and wind turbine is with the first gear rotation speed operation.
As short circuit the second calibrating terminal M and ground wire terminal, the electric current that DC power supply VCC is provided passes through the second relay K2
Coil, the second calibrating terminal M, ground wire terminal flow into ground, the coil of the second relay K2 powers on, and the dynamic of the second relay K2 touches
Point is disconnected with normally closed stationary contact, and movable contact connect with normally opened stationary contact, and the second gear terminal MFAN is connect with firewire, and wind turbine is with the
Two gear rotation speed operations.
As short circuit third calibrating terminal L and ground wire terminal, the electric current that DC power supply VCC is provided passes through third relay K3
Coil, third calibrating terminal L, ground wire terminal flow into ground, the coil of third relay K3 powers on, and the dynamic of third relay K3 touches
Point is disconnected with normally closed stationary contact, and movable contact connect with normally opened stationary contact, and third gear terminal LFAN is connect with firewire, and wind turbine is with the
Three gear rotation speed operations.
Since the normally closed stationary contact and movable contact of the second relay K2 are connected on the movable contact and firewire of the first relay K1
Between, if since maloperation causes the first relay K1 and the coil of the second relay K2 to power on simultaneously, the first relay
The movable contact of K1 is connect with normally opened stationary contact, movable contact and the normally closed stationary contact of the second relay K2 disconnect, movable contact with it is normally opened
Stationary contact connects, i.e. the movable contact of the second relay K2 is disconnected the connection of the first gear terminal HFAN and firewire, therefore, second
Gear terminal MFAN is connect with firewire, the first gear terminal HFAN and firewire are not connected to, and avoids the first gear terminal HFAN and
Two gear terminal MFAN are connect simultaneously with firewire, are avoided thus caused fan operation failure, are ensured the normal operation of wind turbine, carry
The high safety of fan operation.
If since maloperation caused the first relay K1 and the coil of third relay K3 to power on simultaneously, the first relay
The movable contact of device K1 is connect with normally opened stationary contact, the movable contact of third relay K3 is disconnected with normally closed stationary contact, movable contact with often
Open stationary contact connection, i.e. the movable contact of third relay K3 is disconnected the connection of the first gear terminal HFAN and firewire, therefore, the
Three gear terminal LFAN are connect with firewire, the first gear terminal HFAN and firewire are not connected to, avoid the first gear terminal HFAN and
Third gear terminal LFAN is connect simultaneously with firewire, avoids thus caused fan operation failure, ensures the normal operation of wind turbine,
Improve the safety of fan operation.
If since maloperation caused the second relay K2 and the coil of third relay K3 to power on simultaneously, the second relay
The movable contact of device K2 is disconnected with normally closed stationary contact, movable contact is connect with normally opened stationary contact；The movable contact of third relay K3 with often
Close stationary contact disconnection, movable contact is connect with normally opened stationary contact；That is the movable contact of third relay K3 is disconnected the second gear terminal
The connection of MFAN and firewire, therefore, third gear terminal LFAN is connect with firewire, the second gear terminal MFAN and firewire do not connect
It connects, the second gear terminal MFAN and third gear terminal LFAN is avoided to be connect simultaneously with firewire, avoid thus caused wind turbine fortune
Row failure ensures the normal operation of wind turbine, improves the safety of fan operation.
Therefore, the test circuit of the present embodiment by short circuit ground wire terminal and corresponding calibrating terminal, realizes wind turbine with right
The gear rotation speed operation answered realizes the test to rotation speed of fan, and simple and safe effective, testing efficiency is high, solves existing skill
The problem of testing efficiency is low in art saves the production test time, effectively increases testing efficiency；Moreover, circuit structure it is simple,
It is easy to implement, is at low cost.
Certainly, the relay in the present embodiment can also replace with contactor, but contactor generally uses heavy-current control,
With security risk.And relay uses vulnerabilities scan, if the DC power supply of 12V is powered for it, tester's is safe.
The anode connection the of the first diode D1, the first diode D1 is parallel at the both ends of the coil of the first relay K1
One calibrating terminal, the cathode connection DC power supply VCC of the first diode D1.D1 plays the role of afterflow, as the first relay K1
Coil blackout when, coil generates inverse electromotive force, and the circuit being made up of D1 and coil consumes, and protects other yuan in circuit
The safety of device.Certainly, if ground GND disturbs during voltage, and interference voltage be more than DC power supply when, interference electric current can be straight
It connected D1 and flows into DC power supply, and avoided the first relay K1 of damage.
The anode connection the of the second diode D2, the second diode D2 is parallel at the both ends of the coil of the second relay K2
Two calibrating terminals, the cathode connection DC power supply VCC of the second diode D2.D2 plays the role of afterflow, as the second relay K2
Coil blackout when, coil generates inverse electromotive force, and the circuit being made up of D2 and coil consumes, and protects other yuan in circuit
The safety of device.Certainly, if ground GND disturbs during voltage, and interference voltage be more than DC power supply when, interference electric current can be straight
It connected D2 and flows into DC power supply, and avoided the second relay K2 of damage.
It is parallel with third diode D3 at the both ends of the coil of third relay K3, the anode connection of third diode D3 the
Three calibrating terminals, the cathode connection DC power supply VCC of third diode D3.D3 plays the role of afterflow, as third relay K3
Coil blackout when, coil generates inverse electromotive force, and the circuit being made up of D3 and coil consumes, and protects other yuan in circuit
The safety of device.Certainly, if ground GND disturbs during voltage, and interference voltage be more than DC power supply when, interference electric current can be straight
It connected D3 and flows into DC power supply, and avoided damage third relay K3.
Since outdoor fan of air-conditioner generally has, there are three gears：Top grade, middle-grade, low grade, therefore, in the present embodiment, wind
There are three gear terminals for equipment：First gear terminal（High gear terminal）, the second gear terminal（Middling speed gear terminal）, third
Gear terminal（Low gear terminal）, adaptable, test circuit includes three calibrating terminals：First calibrating terminal H, second are surveyed
Terminal M, third calibrating terminal L are tried, test circuit includes three relays：First relay K1, the second relay K2, third after
Electric appliance K3.Using this design, can meet the needs of to wind turbine gear measurement of rotating speed and the setting of gear terminal is excessively led
Send a telegraph road complexity.
As a kind of preferred design of the present embodiment, damping is respectively connected between each gear terminal and zero curve and is inhaled
Receive circuit.Braking absorption circuit is used to absorb the electromotive force instantaneously generated when wind turbine starts, avoids burning relay.
As another preferred design of the present embodiment, due to the winding type of AC blower fan motor, braking absorption
Circuit is added on low gear terminal, you can ensures that braking absorption circuit is available in all windings.Therefore, in the present embodiment
In, in third gear terminal（Low gear terminal）Braking absorption circuit, the second gear terminal and are connected between zero curve
Braking absorption circuit can be not added on one gear terminal, so as to be further simplified circuit structure, reduces circuit cost.
In the present embodiment, braking absorption circuit is the resistance R1 that is cascaded and capacitance C1, simple in structure, convenient for reality
It is existing, at low cost, effect is good.
In the present embodiment, it is provided with socket CN1 in test circuit, socket CN1 draws four cables, respectively with first
The normally opened stationary contact of relay K1, the normally opened stationary contact of the second relay K2, third relay K3 normally opened stationary contact, zero curve pair
It should connect.The first gear terminal HFAN, the second gear terminal MFAN, third gear terminal LFAN, the public terminal N and one of wind turbine
Plug CN2 connections, plug CN2 are plugged in together with socket CN1, realize electrical connection.That is the first gear terminal HFAN is by inserting
Head, socket are connect with the normally opened stationary contact of the first relay K1；Second gear terminal MFAN passes through plug, socket and the second relay
The normally opened stationary contact connection of device K2；The normally opened stationary contact that third gear terminal LFAN passes through plug, socket and third relay K3
Connection；Public terminal N is connected by plug, socket and zero curve.By setting plug and socket, convenient for wind turbine gear terminal with after
The connection of appliance contact, plug is convenient, avoids cumbersome patching operations.
In the present embodiment, the first calibrating terminal H, the second calibrating terminal M, third calibrating terminal L, ground wire terminal are integrated into
In one terminal block, in order to short-circuit operation, testing efficiency is further improved.
Based on the design of above-mentioned rotation speed of fan test circuit, the present embodiment also proposed a kind of air-conditioner outdoor unit, including wind
Machine and master control borad, shown in Figure 2, master control borad includes the test circuit.
If there are two fan designs, the test circuit described in two is designed on master control borad.
By designing the test circuit in air-conditioner outdoor unit, without being connect with air conditioner indoor unit, only outdoor unit list
Body examination tries, you can realize the test to rotation speed of fan, it is simple and safe effective, and testing efficiency is effectively increased, and then improve sky
Adjust the production test efficiency of outdoor unit.
Based on the design of above-mentioned air-conditioner outdoor unit, the present embodiment also proposed a kind of air-conditioning, including air conditioner indoor unit and institute
The air-conditioner outdoor unit stated, indoor unit are connected with outdoor unit.
By designing the air-conditioner outdoor unit in air-conditioning, the production test efficiency of air-conditioner outdoor unit is improved, and then
Improve the production test efficiency of entire air-conditioning.
Certainly, the above description is not intended to limit the present invention, and the utility model is also not limited to the example above,
The variations, modifications, additions or substitutions that those skilled in the art are made in the essential scope of the utility model,
It should also belong to the protection scope of the utility model.
Claims (10)
1. a kind of rotation speed of fan test circuit, the wind turbine has public terminal and at least three gear terminals：First gear end
Son, the second gear terminal, third gear terminal, the public terminal connect zero curve；It is characterized in that：
The test circuit includes ground wire terminal, at least three calibrating terminals：First calibrating terminal, the second calibrating terminal, third
Calibrating terminal, at least three relays：First relay, the second relay, third relay；The quantity of the calibrating terminal,
The quantity of relay is identical with the quantity of gear terminal；The calibrating terminal, relay, gear terminal correspond；Describedly
Line terminals are grounded；
Coil one end connection DC power supply of first relay, the other end connect corresponding first calibrating terminal；Described
The normally opened stationary contact of one relay connects corresponding first gear terminal, the movable contact connection firewire of first relay；
Coil one end connection DC power supply of second relay, the other end connect corresponding second calibrating terminal；Described
The normally closed stationary contact and movable contact of two relays are connected between the movable contact and firewire of the first relay, second relay
Normally opened stationary contact connect corresponding second gear terminal；
Coil one end connection DC power supply of the third relay, the other end connect corresponding third calibrating terminal；Described
The normally closed stationary contact and movable contact of three relays are connected between the movable contact and firewire of the second relay, the third relay
Normally opened stationary contact connect corresponding third gear terminal.
2. test circuit according to claim 1, it is characterised in that：
The first diode, the anode connection first of first diode are parallel at the both ends of the coil of first relay
Calibrating terminal, cathode connect the DC power supply;
The second diode, the anode connection second of second diode are parallel at the both ends of the coil of second relay
Calibrating terminal, cathode connect the DC power supply;
Third diode, the anode connection third of the third diode are parallel at the both ends of the coil of the third relay
Calibrating terminal, cathode connect the DC power supply.
3. test circuit according to claim 1, it is characterised in that：Resistance is each respectively connected between gear terminal and zero curve
Buddhist nun's absorbing circuit.
4. test circuit according to claim 1 or 2, it is characterised in that：There are three gear terminals for the wind turbine tool：First
Gear terminal, the second gear terminal, third gear terminal, the test circuit include three calibrating terminals：First calibrating terminal,
Second calibrating terminal, third calibrating terminal, the test circuit include three relays：First relay, the second relay,
Three relays.
5. test circuit according to claim 4, it is characterised in that：The first gear terminal is high gear terminal,
The second gear terminal is middling speed gear terminal, and the third gear terminal is low gear terminal；
Braking absorption circuit is connected between the third gear terminal and zero curve.
6. test circuit according to claim 5, it is characterised in that：The braking absorption circuit is the resistance and electricity of series connection
Hold.
7. test circuit according to claim 4, it is characterised in that：Socket is provided in the test circuit, it is described
Socket draw four cables, respectively with the normally opened stationary contact of the first relay, the normally opened stationary contact of the second relay, third relay
Normally opened stationary contact, the zero curve of device are correspondingly connected with；
The first gear terminal, the second gear terminal, third gear terminal, the public terminal of the wind turbine are connect with a plug, institute
Plug is stated to connect with socket.
8. test circuit according to claim 4, it is characterised in that：First calibrating terminal, the second calibrating terminal,
Three calibrating terminals, ground wire terminal are integrated into a terminal block.
9. a kind of air-conditioner outdoor unit, including wind turbine and master control borad, it is characterised in that：The master control borad includes such as claim 1 to 8
Any one of described in test circuit.
10. a kind of air-conditioning, it is characterised in that：It is described including air conditioner indoor unit and air-conditioner outdoor unit as claimed in claim 9
Indoor unit is connected with outdoor unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721624320.XU CN207588004U (en) | 2017-11-29 | 2017-11-29 | A kind of rotation speed of fan test circuit, air-conditioner outdoor unit and air-conditioning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721624320.XU CN207588004U (en) | 2017-11-29 | 2017-11-29 | A kind of rotation speed of fan test circuit, air-conditioner outdoor unit and air-conditioning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207588004U true CN207588004U (en) | 2018-07-06 |
Family
ID=62734255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721624320.XU Active CN207588004U (en) | 2017-11-29 | 2017-11-29 | A kind of rotation speed of fan test circuit, air-conditioner outdoor unit and air-conditioning |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207588004U (en) |
-
2017
- 2017-11-29 CN CN201721624320.XU patent/CN207588004U/en active Active
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