CN202581671U - Heat-pump-type air conditioner electric heating device - Google Patents
Heat-pump-type air conditioner electric heating device Download PDFInfo
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- CN202581671U CN202581671U CN 201220239857 CN201220239857U CN202581671U CN 202581671 U CN202581671 U CN 202581671U CN 201220239857 CN201220239857 CN 201220239857 CN 201220239857 U CN201220239857 U CN 201220239857U CN 202581671 U CN202581671 U CN 202581671U
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- electric heater
- control
- blower fan
- air conditioner
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Abstract
Provided is a heat-pump-type air conditioner electric heating device. The heat-pump-type air conditioner electric heating device mainly comprises an electric heater, a controller and a blower. The controller comprises an audion and a plurality of four-foot relays. Each speed gear of the blower and the electric heater are respectively connected with one end foot of the controlled end of the relays, and the other end of the controlled end of the relays is connected with a 220-volt alternating current power supply. One end foot of the controlling end of the relays controlling each speed gear of the blower is connected to the ground, and the other end foot of the controlling end of the relays controlling each speed gear of the blower is connected with a relay drive. One end foot of the controlling end of the relays controlling the electric heater is connected with the relay drive of each speed gear of the blower, and the other end foot of the controlling end of the relays controlling the electric heater is connected with a collector of the audion. A base electrode of the audion is connected with an electric heating control, and an emitter of the audion is connected to the ground. The electric heating device provides double assurance for 'the operation of the blower being a prerequisite condition of the operation of the electric heater' from the software logic and the hardware to avoid the dry burn of the electric heater, and therefore, the operation of the air conditioner is safer.
Description
Technical field
The utility model relates to a kind of electric heater unit of heat pump type air conditioner, belongs to room air and regulates the field.
Background technology
Existing heat pump type air conditioner is typically equipped with electrical auxiliary heater; Like PTCR electric heater or electric heating tube etc.; These electrical auxiliary heaters are opened when worst cold case (outdoor temperature is 10 ℃ and following) or heating capacity deficiency, are used for the residing indoor heat supplement of carrying out of air-conditioner.
At present, the control circuit of the blower fan of heat pump type air conditioner is as shown in Figure 1.Blower fan has three speed thresholds, is respectively blower fan top gear, blower fan mid ranger, blower fan low or first gear.The blower fan top gear is connected on the end pin 13 of controlled end of relay R Y1, and the other end pin 14 of the controlled end of relay R Y1 is connected the AC220 power supply; One end pin, 12 ground connection of the control end of relay R Y1, other end pin 11 connect relay and drive 1.The blower fan mid ranger is connected on the end pin 23 of controlled end of relay R Y2, and the other end pin 24 of the controlled end of relay R Y2 is connected the AC220 power supply; One end pin, 22 ground connection of the control end of relay R Y2, other end pin 21 connect relay and drive 2.The blower fan low or first gear is connected on the end pin 33 of controlled end of relay R Y3, and the other end pin 34 of the controlled end of relay R Y3 is connected the AC220 power supply; One end pin, 32 ground connection of the control end of relay R Y3, other end pin 31 connect relay and drive 3.
At present, the control circuit of the electric heater of heat pump type air conditioner is as shown in Figure 2.Electric heater is connected on the end pin 43 of controlled end of relay R Y4, and the other end pin 44 of the controlled end of relay R Y4 is connected the AC220 power supply; One end pin, 42 ground connection of the control end of relay R Y4, other end pin 41 connect relay and drive 4.
By on can know that the electric heater of existing heat pump type air conditioner all is to control separately with blower fan, both control circuits do not have any association.
Chinese patent document CN10183360A (denomination of invention " electrically heated control method of a kind of air-conditioning and device ") discloses a kind of electrically heated control method of air-conditioner; Proposition is opened blower fan by controller earlier through judgement and control; Opening electric heater again, thus avoided electric heater dry combustion method to occur.Yet, on the control circuit of the controller of this invention, blower fan and electric heater and onrelevant.If software control failure, processor deadlock or the malfunctioning situation of control components and parts only electrical heating still can occur and open separately, and blower fan are not opened situation.Therefore, the situation that this invention can not be stopped the electric heater dry combustion method fully takes place, and still has the air-conditioning hidden danger that causes fire and cause heavy economic losses on fire.
The utility model content
The utility model is to solve under the malfunctioning situation of above-mentioned software control failure, processor deadlock or control components and parts, and the problem of dry combustion method still appears in the electric heater of heat pump type air conditioner.
For this reason; The utility model provides a kind of electric heater unit of heat pump type air conditioner; Mainly form by electric heater, controller, blower fan; Controller comprises triode, a plurality of four pin relays, the end pin that each speed shelves of aforementioned blower fan, electric heater are connected to the controlled end of relay, and the other end pin of the controlled end of relay is connected the AC220 power supply; One end pin ground connection of the control end of the relay of each speed shelves of aforementioned control blower fan, other end pin connects relay and drives; The relay that one end pin of the control end of the relay of aforementioned control electric heater is connected to each speed shelves of aforementioned control blower fan drives, and other end pin is connected on the colelctor electrode of triode, and the base stage of triode connects electrical heating control, the grounded emitter of triode.
Further optimization as the utility model; In the electric heater unit of heat pump type air conditioner; Controller also can comprise diode, resistance one, resistance two, and an end pin of the control end of the relay of aforementioned control electric heater drives through the relay that diode is connected to each speed shelves of aforementioned control blower fan; The emitter stage of aforementioned triode is connected through resistance two with base stage, and the base stage of triode connects electrical heating control through resistance one.
In the electric heater unit of the utility model, when the control blower fan is selected the relay driving output high level of corresponding speed shelves and corresponding relay, the controlled end conducting of this relay, blower fan is opened and is moved with corresponding speed shelves; Simultaneously, diode current flow, the control end of the relay of control electric heater is a high level; Behind electrical heating control output control of turning signal, triode is in conducting state, the controlled end conducting of the relay of control electric heater, electric heater operation.
The utility model; On the basis of the described software control method of Chinese patent document CN10183360A; Increased the control of hardware circuit logical interlock, guaranteed that on hardware circuit the relay of controlling electric heater will move, must move with the relay of control blower fan as precondition.Even under the situation that software control failure, processor are crashed or the control components and parts are malfunctioning, can not occur having only yet electrical heating unlatching, blower fan do not open,, the situation of electric heater dry combustion method, the generation of avoiding fire of maximum possible.Like this, electric heater unit carries out dual assurance to " operation of blower fan is the prerequisite of electric heater operation " from software logic and on the hardware.
Simultaneously, the electric heater unit of the utility model is applicable to the blower fan of speed shelves or many speed shelves, and switching of each speed shelves of blower fan does not influence the normal operation of electric heater, the operation mutually noninterfere of blower fan and electric heater, independently separately normally moves.
In addition, the electric heater unit of the utility model only increases several diodes, two resistance and a triode and just can realize that cost is less on existing hardware foundation, and Operation and maintenance are all simple, convenient.
Description of drawings
Further specify the utility model below in conjunction with the accompanying drawing and the specific embodiment.
Fig. 1 is the control circuit sketch map of the blower fan of existing heat pump type air conditioner;
Fig. 2 is the control circuit sketch map of the electric heater of existing heat pump type air conditioner;
Fig. 3 is the control system diagram of electric heater unit of the heat pump type air conditioner of the utility model.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand understanding with effect, below in conjunction with concrete diagram, further set forth the utility model.
As shown in Figure 3, the electric heater unit of the heat pump type air conditioner of this embodiment mainly is made up of electric heater, controller, blower fan; Controller comprises triode Q1; 4 four pin relay R Y1, RY2, RY3, RY4, RY5,3 diode D1, D2, D3, resistance one R1, resistance two R2.Blower fan has three speed thresholds, is respectively blower fan top gear, blower fan mid ranger, blower fan low or first gear.When blower fan speed shelves quantity increases, can increase corresponding diode.
The blower fan top gear is connected on the end pin 13 of controlled end of relay R Y1, and the other end pin 14 of the controlled end of relay R Y1 is connected the AC220 power supply; One end pin, 12 ground connection of the control end of relay R Y1, other end pin 11 connect relay and drive 1.The blower fan mid ranger is connected on the end pin 23 of controlled end of relay R Y2, and the other end pin 24 of the controlled end of relay R Y2 is connected the AC220 power supply; One end pin, 22 ground connection of the control end of relay R Y2, other end pin 21 connect relay and drive 2.The blower fan low or first gear is connected on the end pin 33 of controlled end of relay R Y3, and the other end pin 34 of the controlled end of relay R Y3 is connected the AC220 power supply; One end pin, 32 ground connection of the control end of relay R Y3, other end pin 31 connect relay and drive 3.
Electric heater is connected on the end pin 43 of controlled end of relay R Y4, and the other end pin 44 of the controlled end of relay R Y4 is connected the AC220 power supply.One end pin 42 of the control end of relay R Y4 is connected on the colelctor electrode of triode Q1, and the base stage of triode Q1 connects electrical heating control through resistance one R1, the grounded emitter of triode Q1, and the emitter stage of triode Q1 is connected through resistance two R2 with base stage.The other end pin 41 of the control end of relay R Y4 is connected to relay driving 1, relay driving 2, relay driving 3, relay driving 4 through diode D1, D2, D3 respectively.
Adopt the heat pump type air conditioner of the electric heater unit of present embodiment; Comprise and be contained in air-conditioner inside, each functional module of air-conditioner is opened or the controller of closing control; Be contained in air-conditioner inner electric heater, indoor fan (no specified otherwise, blower fan is promptly represented indoor fan in the utility model), compressor, outdoor fan, reversal valve.Electric heater, indoor fan link to each other with relay R Y1-RY4 on the controller; The relay R Y4 of control electric heater is controlled by control signal and the electrical heating control signal of the relay R Y1/RY2/ RY3 of control room inner blower simultaneously; Have only under two kinds of simultaneous conditions of control signal, the relay R Y4 of control electric heater could open.
Adopt the heat pump type air conditioner of the electric heater unit of present embodiment, under the situation about meeting the following conditions at the same time, controller output control signal opening chamber's inner blower and electric heater:
1, air-conditioner is in the heating mode of normal operation, and electric heater is in closed condition, and promptly the compressor start of air-conditioner, outdoor fan running, reversal valve get;
2,, and open speed shelves wherein according to actual needs according to software logic judgement needs opening chamber inner blower;
3, according to software logic judgement needs opening electric heater, output electrical heating control signal.
Satisfy under the situation of above 3 conditions, indoor fan is opened to corresponding speed shelves, and electric heater unit moves as follows:
When 1, opening the blower fan top gear, relay drives 1 output high level; The controlled end of relay R Y1 is promptly held pin 13,14 conductings, and blower fan is opened and moved with top gear; Simultaneously, diode D1 conducting, the control end 41 of relay R Y4 is a high level; Behind electrical heating control output control of turning signal, triode Q1 is in conducting state, and the controlled end of relay R Y4 is promptly held pin 43,44 conductings, the electric heater operation.
When 2, opening the blower fan mid ranger, relay drives 2 output high level; The controlled end of relay R Y2 is promptly held pin 23,24 conductings, and blower fan is opened and moved with mid ranger; Simultaneously, diode D2 conducting, the control end 41 of relay R Y4 is a high level; Behind electrical heating control output control of turning signal, triode Q1 is in conducting state, and the controlled end of relay R Y4 is promptly held pin 43,44 conductings, the electric heater operation.
When 3, opening the blower fan mid ranger, relay drives 3 output high level; The controlled end of relay R Y3 is promptly held pin 33,34 conductings, and blower fan is opened and moved with mid ranger; Simultaneously, diode D3 conducting, the control end 41 of relay R Y4 is a high level; Behind electrical heating control output control of turning signal, triode Q1 is in conducting state, and the controlled end of relay R Y4 is promptly held pin 43,44 conductings, the electric heater operation.
By on can know that the unlatching of the arbitrary speed shelves of blower fan is preconditions that electric heater is opened.
If electric heater is opened, and under the situation of any one condition below satisfying, controller cuts out electric heater:
1, the control signal of electric heater is closed in software logic judgement output;
2, the indoor fan of air-conditioner is in closed condition.
At this moment, electric heater unit moves as follows:
Electrical heating control output low level signal, triode Q1 can't conductings and be closed, and relay R Y4 circuit is opened circuit to be lost turn-on condition and close, and the electric heater non-transformer can't move and close.
Close corresponding speed shelves when indoor fan, the electric heater unit of this embodiment moves as follows:
Close when 1, the blower fan top gear moves, relay drives 1 output low level, and the controlled end of relay R Y1 is promptly held pin 13,14 to lose turn-on condition and closed, and indoor fan does not move; Simultaneously diode D1 does not have not conducting of pressure reduction, and relay R Y4 loses high level can't conducting, close, and the electric heater non-transformer is also closed.
Close when 2, the blower fan mid ranger moves, relay drives 2 output low levels, and the controlled end of relay R Y2 is promptly held pin 23,24 to lose turn-on condition and closed, and indoor fan does not move; Simultaneously diode D2 does not have not conducting of pressure reduction, and relay R Y4 loses high level can't conducting, close, and the electric heater non-transformer is also closed.
Close when 3, the blower fan mid ranger moves, relay drives 3 output low levels, and the controlled end of relay R Y3 is promptly held pin 33,34 to lose turn-on condition and closed, and indoor fan does not move; Simultaneously diode D3 does not have not conducting of pressure reduction, and relay R Y4 loses high level can't conducting, close, and the electric heater non-transformer is also closed.
This shows that the arbitrary speed shelves of blower fan are closed, and electric heater cuts out.
More than be one of embodiment of the utility model,, do not spend performing creative labour, on the basis of the foregoing description, can do multiple variation, can realize the purpose of the utility model equally for those skilled in the art.But this variation obviously should be in the protection domain of claims of the utility model.
Claims (2)
1. the electric heater unit of heat pump type air conditioner; Mainly form by electric heater, controller, blower fan; Controller comprises a plurality of four pin relays (RY1, RY2, RY3, RY4); The end pin (13,23,33,43) that each speed shelves of aforementioned blower fan, electric heater are connected to the controlled end of relay, the other end pin of the controlled end of relay (14,24,34,44) is connected the AC220 power supply; One end pin (12,22,32, the 42) ground connection of the control end of relay, other end pin (11,21,31,41) connect relay and drive, and it is characterized in that: aforementioned controller also comprises triode (Q1); The relay that one end pin (41) of the control end of the relay of aforementioned control electric heater (RY4) is connected to each speed shelves of aforementioned control blower fan drives; Other end pin (42) is connected on the colelctor electrode of triode (Q1); The base stage of triode (Q1) connects electrical heating control, the grounded emitter of triode (Q1).
2. the electric heater unit of heat pump type air conditioner according to claim 1; It is characterized in that: aforementioned controller also comprises diode (D1), resistance one (R1), resistance two (R2), and an end pin (41) of the control end of the relay of aforementioned control electric heater (RY4) drives through the relay that diode (D1/ D2/ D3) is connected to each speed shelves of aforementioned control blower fan; The emitter stage of aforementioned triode (Q1) is connected through resistance two (R2) with base stage, and the base stage of triode (Q1) connects electrical heating control through resistance one (R1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220239857 CN202581671U (en) | 2012-05-25 | 2012-05-25 | Heat-pump-type air conditioner electric heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220239857 CN202581671U (en) | 2012-05-25 | 2012-05-25 | Heat-pump-type air conditioner electric heating device |
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| Publication Number | Publication Date |
|---|---|
| CN202581671U true CN202581671U (en) | 2012-12-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220239857 Withdrawn - After Issue CN202581671U (en) | 2012-05-25 | 2012-05-25 | Heat-pump-type air conditioner electric heating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202581671U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102679500A (en) * | 2012-05-25 | 2012-09-19 | 宁波奥克斯空调有限公司 | Electric heater device of heat pump-type air conditioner |
-
2012
- 2012-05-25 CN CN 201220239857 patent/CN202581671U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102679500A (en) * | 2012-05-25 | 2012-09-19 | 宁波奥克斯空调有限公司 | Electric heater device of heat pump-type air conditioner |
| CN102679500B (en) * | 2012-05-25 | 2014-09-17 | 宁波奥克斯空调有限公司 | Electric heater device of heat pump-type air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121205 Effective date of abandoning: 20140917 |
|
| RGAV | Abandon patent right to avoid regrant |