CN102889638B - Explosion-proof air conditioner - Google Patents
Explosion-proof air conditioner Download PDFInfo
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- CN102889638B CN102889638B CN201110201001.9A CN201110201001A CN102889638B CN 102889638 B CN102889638 B CN 102889638B CN 201110201001 A CN201110201001 A CN 201110201001A CN 102889638 B CN102889638 B CN 102889638B
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Abstract
The invention discloses an explosion-proof air conditioner. The explosion-proof air conditioner comprises an outdoor unit (100) and an indoor unit (200); a flame-proof box component (5) is arranged inside the outdoor unit (100); the flame-proof box component (5) comprises an outdoor intrinsic safety type control main board (4), wherein a safety gate circuit is integrated inside the outdoor intrinsic safety type control main board (4); an increased safety box component (11) and an indoor intrinsic safety type control main board are arranged inside the indoor unit (200); the increased safety box component (11) is connected with the flame-proof box component (5); the indoor intrinsic safety type control main board comprises an intrinsic safety type display (14), and one end of the intrinsic safety type display (14) is connected with the outdoor intrinsic safety type control main board (4). By virtue of the explosion-proof air conditioner, the security and the reliability of the explosion-proof air conditioner can be higher.
Description
Technical field
The present invention relates to air-conditioner field, in particular to a kind of explosion-proof air conditioner.
Background technology
Existing explosion-proof detachable air conditioner (comprising cabinet-type air conditioner, split air conditioner) carries out technological processing for explosion protection feature to part components and parts on the basis of normal domestic use detachable air conditioner, mainly adopts flame proof, increases the compound explosion-prevention technology such as peace, intrinsic safety, encapsulation.Indoor set is with forceful electric power mainboard and light current display board, and wherein, forceful electric power mainboard comprises the more forceful electric power parts such as motor, terminal plate and electric capacity, and be arranged on and increase in peace case or Flameproof box, security is low; Light current display board carries out isolation processing by external guard grating makes it reach intrinsically safe circuit requirement, complex structure.In addition, off-premises station, with intrinsic safety controller, for pressure detecting, is not vented temperature sensing function; Motor and electromagnetic valve coil adopt flame-proof type technology, and cost is high and assembling is poor.
For the problem that explosion-proof air conditioner safety and reliability in correlation technique is low, at present effective solution is not yet proposed.
Summary of the invention
Main purpose of the present invention is to provide a kind of explosion-proof air conditioner, to solve the problem that explosion-proof air conditioner security is low and reliability is low.
To achieve these goals, according to the present invention, provide a kind of explosion-proof air conditioner.
Explosion-proof air conditioner according to the present invention comprises off-premises station and indoor set, is provided with Flameproof box assembly in off-premises station, and Flameproof box assembly comprises outdoor intrinsic safety type control main board, is integrated with safety barrier circuit in outdoor intrinsic safety type control main board; And in indoor set, be provided with increasing peace box assembly and indoor intrinsic safety type control main board, increase peace box assembly and be connected with Flameproof box assembly, indoor intrinsic safety type control main board comprises intrinsic safety type display, and one end of intrinsic safety type display is connected with outdoor intrinsic safety type control main board.
Further, outdoor intrinsic safety type control main board comprises non-intrinsically safe circuit and intrinsically safe circuit, and wherein, intrinsically safe circuit comprises: mainboard MCU governor circuit, intrinsic safety are powered and intrinsic safety 485 telecommunication circuit.
Further, mainboard MCU governor circuit comprises: main control MCU power supply safety grid circuit.
Further, intrinsic safety is powered and to be comprised with intrinsic safety 485 telecommunication circuit: the safety barrier circuit that display board is powered, the safety barrier circuit of power communications and the safety barrier circuit communicated.
Further, explosion-proof air conditioner according to the present invention also comprises the temperature module, in machine disposed in the outdoor, be connected with outdoor intrinsic safety type control main board, for whether detecting the surface temperature of the compressor of explosion-proof air conditioner more than the first preset temperature value, wherein, outdoor intrinsic safety type control main board is used for when the temperature module detects the surface temperature of the compressor of explosion-proof air conditioner more than the first preset temperature value, sends control instruction and compressor is quit work.
Further, the temperature module comprises: exhaust temperature-sensitive bag, pipe warming thermometer bulb and environment temperature-sensitive bag.
Further, explosion-proof cross valve is also comprised according to explosion-proof air conditioner of the present invention, in machine disposed in the outdoor, explosion-proof cross valve comprises temperature sensing device and electromagnetic valve coil, and wherein, temperature sensing device and electromagnetic valve coil are fixed together, for whether detecting the temperature of electromagnetic valve coil more than the second preset temperature value, wherein, outdoor intrinsic safety type control main board is used for when temperature sensing device detects the temperature of electromagnetic valve coil more than the second preset temperature value, sends control instruction and explosion-proof cross valve is quit work.
Further, in off-premises station, be also provided with explosion-proof fan electromotor, this explosion-proof fan electromotor is connected with Flameproof box assembly, is Non-spark fire-proof motor.
Further, be also provided with in off-premises station: high voltage protective switch, is connected with outdoor intrinsic safety type control main board, for the high voltage protective to explosion-proof air conditioner; And low-voltage protective switch, be connected with outdoor intrinsic safety type control main board, for the low-voltage variation to explosion-proof air conditioner.
Further, in indoor set, be also provided with motor, this motor is pacified box assembly with increasing and is connected, and is Non-spark flame-proof electric motor.
By the present invention, adopt the explosion-proof air conditioner comprised with lower part: off-premises station and indoor set, be provided with Flameproof box assembly in off-premises station, and Flameproof box assembly comprises outdoor intrinsic safety type control main board, is integrated with safety barrier circuit in outdoor intrinsic safety type control main board; And in indoor set, be provided with increasing peace box assembly and indoor intrinsic safety type control main board, increase peace box assembly to be connected with Flameproof box assembly, indoor intrinsic safety type control main board comprises intrinsic safety type display, one end of intrinsic safety type display is connected with outdoor intrinsic safety type control main board, solve the problem that explosion-proof air conditioner safety and reliability is low, and then reach the high effect of explosion-proof air conditioner safety and reliability.
Accompanying drawing explanation
The accompanying drawing forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the block diagram of the explosion-proof air conditioner according to the embodiment of the present invention; And
Fig. 2 is the circuit diagram of the explosion-proof air conditioner according to the embodiment of the present invention.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
Fig. 1 is the block diagram of the explosion-proof air conditioner according to the embodiment of the present invention, as shown in Figure 1, this explosion-proof air conditioner comprises off-premises station 100 and indoor set 200, Flameproof box assembly 5 is provided with in off-premises station 100, Flameproof box assembly 5 comprises outdoor intrinsic safety type control main board 4, as W308F2, W523F2, wherein, safety barrier circuit is integrated with in outdoor intrinsic safety type control main board 4, safety barrier circuit adopts the device such as diode, protective tube to carry out Limited Current, restriction energy, the forceful electric power circuit of mainboard is by Power supply, and light current circuit is powered by isolating transformer; And in indoor set 200, be provided with increasing peace box assembly 11 and indoor intrinsic safety type control main board, increase peace box assembly 11 to be connected via one group of control line with Flameproof box assembly 5, indoor intrinsic safety type control main board comprises intrinsic safety type display 14, and one end of intrinsic safety type display 14 is organized control line with outdoor intrinsic safety type control main board 4 via another and is connected.
In this embodiment, off-premises station 100 is provided with the outdoor intrinsic safety type control main board 4 being integrated with safety barrier circuit, and this outdoor intrinsic safety type control main board 4 is arranged in Flameproof box assembly 5, the strong power part of air conditioner control system is made to move on to the control mainboard of off-premises station by the control mainboard of indoor set, and carry out flame proof process through Flameproof box assembly 5, correspondingly, the display board of indoor set 200 is set to intrinsic safety type display 14, thus the indoor intrinsic safety type control main board of indoor set 200 does not comprise strong power part, extra guard grating is not needed to isolate, and do not need to be arranged in explosion-proof tank, improve the security of explosion-proof air conditioner, reliability and assembling.
Preferably, also the temperature module is provided with in off-premises station 100, be connected with outdoor intrinsic safety type control main board 4, for whether detecting the surface temperature of the compressor 7 of explosion-proof air conditioner more than the first preset temperature value, wherein, the temperature module comprises exhaust temperature-sensitive bag 1, pipe warming thermometer bulb 2 and environment temperature-sensitive bag 3, when the temperature module detects the surface temperature of the compressor 7 of explosion-proof air conditioner more than the first preset temperature value, outdoor intrinsic safety type control main board 4 sends instruction makes compressor 7 quit work, and prevents compressor 7 surface temperature too high causing from igniting damp.
In this embodiment; the temperature module that off-premises station 100 detects with intrinsic safety; comprehensively detected by the exhaust to air-conditioner, pipe temperature and environment temperature; can protect according to certain temperature spot or temperature section being arranged on 120-135 DEG C; when the temperature module detection exceedes this temperature spot or temperature section; outdoor intrinsic safety type control main board 4 sends instruction makes compressor 7 quit work; the temperature limit 135 DEG C that can prevent from compressor 7 surface temperature from exceeding complete machine explosive-proof grade specifying, improves the safety and reliability of explosion-proof air conditioner.
Preferably, explosion-proof cross valve 6 is also provided with in off-premises station 100, explosion-proof cross valve 6 comprises temperature sensing device and electromagnetic valve coil, wherein, temperature sensing device and electromagnetic valve coil are fixed together, for whether detecting the temperature of electromagnetic valve coil more than the second preset temperature value, when the temperature of the electromagnetic valve coil that temperature sensing device detects is more than the second preset temperature value, temperature sensing device open circuit, after outdoor intrinsic safety type control main board 4 detects the break signal caused by overtemperature, send instruction and explosion-proof cross valve 6 is quit work.
In this embodiment; by temperature sensing device and electromagnetic valve coil are fixed together; outdoor explosion-proof cross valve 6 is made to have temperature protection function; wherein; temperature sensing device can be thermal cut-off, temperature limiter or temperature-sensitive bag etc.; together with electromagnetic valve coil encapsulation or plastic packaging, can protect according to certain temperature spot or temperature section being arranged on 120-135 DEG C, the temperature limit 135 DEG C preventing from electromagnetic valve coil surface temperature from exceeding complete machine explosive-proof grade specifying.When electromagnetic valve coil temperature exceedes the protection temperature spot of setting, temperature sensing device open circuit, after mainboard detects break signal, sends instruction and explosion-proof cross valve is quit work, and prevents magnetic valve surface temperature too high causing from igniting damp.
Preferably, be also provided with explosion-proof fan electromotor 8 in off-premises station 100, explosion-proof fan electromotor 8 is connected with Flameproof box assembly 5, is Non-spark fire-proof motor.
In this embodiment, outdoor motor adopts Non-spark motor, as explosion-proof asynchronous machine YDK82-6T, no-spark motor is on the basis of common electric machine, coil was sealed by increasing, change lead-out wire into cable etc., make motor meet the requirement of Non-spark explosion-proof criteria, adopt Non-spark fire-proof motor to have the advantage that security is good, cost is low and easy to assembly.
Preferably, be also provided with in off-premises station 100: high voltage protective switch 9, for the high voltage protective to explosion-proof air conditioner, be connected with outdoor intrinsic safety type control main board 4; And low-voltage protective switch 10, for the low-voltage variation to explosion-proof air conditioner, be connected with outdoor intrinsic safety type control main board 4.
In this embodiment, by arranging high-low pressure protection switch, make explosion-proof air conditioner have high-low pressure defencive function, security is higher.System pressure too low or too high time, high-low pressure protection switch perform protection act, when outdoor intrinsic safety type control main board 4 detects the guard signal produced by protection act, send instruction and compressor shut down.
Preferably, in indoor set 200, be also provided with individual event asynchronous motor 12, pacify box assembly 11 with increasing and be connected, motor is Non-spark flame-proof electric motor.
In this embodiment, indoor electric motivation adopts Non-spark motor, as explosion-proof plastic packaging YKBH11-4-2347, adopts Non-spark fire-proof motor to have the advantage that security is good, cost is low and easy to assembly.
Alternatively, in indoor set 200, be also provided with room temperature environment temperature-sensitive bag 13, be connected with the other end of intrinsic safety type display 14, temperature protection can be carried out to intrinsic safety type display 14.
Fig. 2 is the circuit diagram of the explosion-proof air conditioner according to the embodiment of the present invention, and as shown in Figure 2, outdoor intrinsic safety type control main board 4 comprises non-intrinsically safe circuit and intrinsically safe circuit, and wherein, intrinsically safe circuit comprises: mainboard MCU governor circuit, intrinsic safety are powered and intrinsic safety 485 telecommunication circuit.
Mainboard MCU governor circuit comprises: main control MCU power supply safety grid circuit.
Intrinsic safety is powered and to be comprised with intrinsic safety 485 telecommunication circuit: the safety barrier circuit that display board is powered, the safety barrier circuit of power communications and the safety barrier circuit communicated, adopt intrinsic safety 485 telecommunication circuit to transmit the signal such as temperature and controlling functions, have that transmission information amount is large, the advantage of feature richness.
As shown in Figure 2, increase peace box assembly and also comprise: increase and pacify case, terminal plate, blower fan electric capacity, electric capacity adopts the electric capacity of band lead-out wire, back panel wiring is all that screw connects, and avoids the unreliable electric spark or the superheating phenomenon that connect generation.Flameproof box assembly also comprises: Flameproof box, terminal plate, blower fan electric capacity and compressor capacitor, relay, A.C. contactor, anti-phase protector.
Exhaust temperature-sensitive bag 1, pipe warming thermometer bulb 2, environment temperature-sensitive bag 3, explosion-proof cross valve 6, high voltage protective switch 9 are connected with outdoor intrinsic safety type control main board 4 respectively with high voltage protective switch 10.Control circuit realizes in the following manner: complete machine adopts outdoor power supply, and the individual event asynchronous motor 12 of machine 100 disposed in the interior controls rotating speed by outdoor mainboard, is connected between indoor and outdoor controller by multicore connecting line.
Explosion-proof air conditioner of the present invention have employed flame proof, increases the multiple explosion-proof technologies such as peace, intrinsic safety, encapsulation, Non-spark, the outdoor intrinsic safety type control main board integrated security grid circuit of off-premises station, thus the forceful electric power parts of indoor set mainboard can be removed, indoor set mainboard does not need extra guard grating to isolate, and indoor set display board is set to intrinsic safety type display, make indoor mainboard not need to be arranged in explosion-proof tank, improve the security of complete machine, simplify complete machine control circuit; Meanwhile, motor does not adopt flame-proof type explosion-proof technology, adopts Non-spark motor, increases the security of explosion-proof air conditioner; By arranging the temperature module, off-premises station is made to have exhaust temperature-sensitive defencive function and magnetic valve overheat protection function; Adopt carrier communication mode between indoor and outdoor machine, advanced technology, reliability is high.Adopt explosion-proof air conditioner of the present invention, the security of complete machine, reliability, assembling can be improved, reduce costs simultaneously.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. an explosion-proof air conditioner, comprises off-premises station (100) and indoor set (200), it is characterized in that,
Flameproof box assembly (5) is provided with in described off-premises station (100), described Flameproof box assembly (5) comprises outdoor intrinsic safety type control main board (4), wherein, safety barrier circuit is integrated with in described outdoor intrinsic safety type control main board (4);
Be provided with in described indoor set (200) and increase peace box assembly (11) and indoor intrinsic safety type control main board, wherein:
Described increasing peace box assembly (11) is connected with described Flameproof box assembly (5),
Described indoor intrinsic safety type control main board comprises intrinsic safety type display (14), and one end of described intrinsic safety type display (14) is connected with described outdoor intrinsic safety type control main board (4); And
The temperature module, be arranged in described off-premises station (100), be connected with described outdoor intrinsic safety type control main board (4), for whether detecting the surface temperature of the compressor (7) of described explosion-proof air conditioner more than the first preset temperature value
Wherein, when described outdoor intrinsic safety type control main board (4) is for the surface temperature of described compressor (7) being detected more than the first preset temperature value when described the temperature module, sends control instruction and described compressor (7) is quit work.
2. explosion-proof air conditioner according to claim 1, it is characterized in that, described outdoor intrinsic safety type control main board (4) comprises non-intrinsically safe circuit and intrinsically safe circuit, and wherein, described intrinsically safe circuit comprises: mainboard MCU governor circuit, intrinsic safety are powered and intrinsic safety 485 telecommunication circuit.
3. explosion-proof air conditioner according to claim 2, is characterized in that, described mainboard MCU governor circuit comprises: main control MCU power supply safety grid circuit.
4. explosion-proof air conditioner according to claim 2, is characterized in that, described intrinsic safety is powered and to be comprised with intrinsic safety 485 telecommunication circuit: the safety barrier circuit that display board is powered, the safety barrier circuit of power communications and the safety barrier circuit communicated.
5. explosion-proof air conditioner according to claim 1, is characterized in that, described the temperature module comprises:
Exhaust temperature-sensitive bag (1), pipe warming thermometer bulb (2) and environment temperature-sensitive bag (3).
6. explosion-proof air conditioner according to claim 1, is characterized in that, also comprises:
Explosion-proof cross valve (6), be arranged in described off-premises station (100), described explosion-proof cross valve (6) comprises temperature sensing device and electromagnetic valve coil, wherein, described temperature sensing device and described electromagnetic valve coil are fixed together, for whether detecting the temperature of described electromagnetic valve coil more than the second preset temperature value
Wherein, described outdoor intrinsic safety type control main board (4), for when described temperature sensing device detects the temperature of described electromagnetic valve coil more than the second preset temperature value, sends control instruction and described explosion-proof cross valve (6) is quit work.
7. explosion-proof air conditioner according to claim 1, it is characterized in that, explosion-proof fan electromotor (8) is also provided with in described off-premises station (100), described explosion-proof fan electromotor (8) is connected with described Flameproof box assembly (5), is Non-spark fire-proof motor.
8. explosion-proof air conditioner according to claim 1, is characterized in that, is also provided with in described off-premises station (100):
High voltage protective switch (9), is connected with described outdoor intrinsic safety type control main board (4), for the high voltage protective to described explosion-proof air conditioner; And
Low-voltage protective switch (10), is connected with described outdoor intrinsic safety type control main board (4), for the low-voltage variation to described explosion-proof air conditioner.
9. explosion-proof air conditioner according to claim 1, it is characterized in that, motor (12) is also provided with in described indoor set (200), described motor (12) is pacified box assembly (11) be connected with described increasing, is Non-spark flame-proof electric motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110201001.9A CN102889638B (en) | 2011-07-18 | 2011-07-18 | Explosion-proof air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110201001.9A CN102889638B (en) | 2011-07-18 | 2011-07-18 | Explosion-proof air conditioner |
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| CN102889638A CN102889638A (en) | 2013-01-23 |
| CN102889638B true CN102889638B (en) | 2015-03-18 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US9559517B2 (en) | 2014-09-16 | 2017-01-31 | Hoffman Enclosures, Inc. | Encapsulation of components and a low energy circuit for hazardous locations |
| CN106394583A (en) * | 2016-08-31 | 2017-02-15 | 中车青岛四方机车车辆股份有限公司 | Air conditioner and rail-mounted train with air conditioner |
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