CN102889638A - Explosion-proof air conditioner - Google Patents
Explosion-proof air conditioner Download PDFInfo
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- CN102889638A CN102889638A CN2011102010019A CN201110201001A CN102889638A CN 102889638 A CN102889638 A CN 102889638A CN 2011102010019 A CN2011102010019 A CN 2011102010019A CN 201110201001 A CN201110201001 A CN 201110201001A CN 102889638 A CN102889638 A CN 102889638A
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- 230000001681 protective effect Effects 0.000 claims description 12
- 238000001514 detection method Methods 0.000 claims description 6
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- 238000005516 engineering process Methods 0.000 description 6
- 230000006870 function Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
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- 238000004806 packaging method and process Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
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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), wherein an explosion-proof box assembly (5) is arranged in the outdoor unit (100), the explosion-proof box assembly (5) comprises an outdoor intrinsic safety type control main board (4), and a safety gate circuit is integrated in the outdoor intrinsic safety type control main board (4); and an increased safety box component (11) and an indoor intrinsic safety type control main board are arranged in the indoor unit (200), the increased safety box component (11) is connected with the explosion-proof box component (5), the indoor intrinsic safety type control main board comprises an intrinsic safety display (14), and one end of the intrinsic safety display (14) is connected with the outdoor intrinsic safety type control main board (4). The invention can ensure that the safety and the reliability of the explosion-proof air conditioner are higher.
Description
Technical field
The present invention relates to the 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) is on the basis of normal domestic use detachable air conditioner the part components and parts to be carried out technological processing for explosion protection feature, mainly adopts flame proof, increases peace, intrinsic safety, waters the compound explosion-prevention technology such as envelope.Indoor set is with forceful electric power mainboard and light current display board, and wherein, the forceful electric power mainboard comprises the more forceful electric power parts such as motor, terminal plate and electric capacity, is installed in to increase in peace case or the Flameproof box, and security is low; The 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 is used for pressure detecting with the intrinsic safety controller, does not have the exhaust temperature sensing function; Motor and electromagnetic valve coil adopt the flame-proof type technology, and cost height and assembling are poor.
For the low problem of explosion-proof air conditioner safety and reliability in the correlation technique, effective solution is proposed not yet at present.
Summary of the invention
Main purpose of the present invention is to provide a kind of explosion-proof air conditioner, to solve the low and low problem of reliability of explosion-proof air conditioner security.
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 the Flameproof box assembly in off-premises station, and the Flameproof box assembly comprises outdoor intrinsic safety type control mainboard, is integrated with safety barrier circuit in the outdoor intrinsic safety type control mainboard; And in indoor set, be provided with and increase peace box assembly and indoor intrinsic safety type control mainboard, increasing the peace box assembly and be connected with the Flameproof box assembly, indoor intrinsic safety type control mainboard comprises the intrinsic safety display, an end of intrinsic safety display is controlled mainboard with outdoor intrinsic safety type and is connected.
Further, outdoor intrinsic safety type control mainboard comprises non-intrinsically safe circuit and intrinsically safe circuit, and wherein, intrinsically safe circuit comprises: mainboard MCU governor circuit, intrinsic safety power supply and intrinsic safety 485 telecommunication circuits.
Further, mainboard MCU governor circuit comprises: main control MCU power supply safety grid circuit.
Further, the intrinsic safety power supply comprises with intrinsic safety 485 telecommunication circuits: the safety barrier circuit and the safety barrier circuit of communicating by letter of the safety barrier circuit of display board power supply, the power supply of communicating by letter.
Further, also comprise the temperature module according to explosion-proof air conditioner of the present invention, be arranged in the off-premises station, be connected with outdoor intrinsic safety type control mainboard, whether the surface temperature for detection of the compressor of explosion-proof air conditioner surpasses the first preset temperature value, wherein, the surface temperature of compressor that outdoor intrinsic safety type control mainboard is used for detecting explosion-proof air conditioner when the temperature module is sent control instruction compressor is quit work during above the first preset temperature value.
Further, the temperature module comprises: exhaust temperature-sensitive bag, pipe warming thermometer bulb and environment temperature-sensitive bag.
Further, also comprise explosion-proof cross valve according to explosion-proof air conditioner of the present invention, be arranged in the off-premises station, explosion-proof cross valve comprises temperature sensing device and electromagnetic valve coil, and wherein, temperature sensing device and electromagnetic valve coil are fixed together, whether the temperature for detection of electromagnetic valve coil surpasses the second preset temperature value, wherein, when outdoor intrinsic safety type control mainboard surpasses the second preset temperature value for the temperature that detects electromagnetic valve coil when temperature sensing device, send control instruction explosion-proof cross valve is quit work.
Further, also be provided with explosion-proof fan electromotor in off-premises station, this explosion-proof fan electromotor is connected with the Flameproof box assembly, is the Non-spark fire-proof motor.
Further, in off-premises station, also be provided with: the high voltage protective switch, be connected with outdoor intrinsic safety type control mainboard, be used for the high voltage protective to explosion-proof air conditioner; And low-voltage protective switch, be connected with outdoor intrinsic safety type control mainboard, be used for the low-voltage variation to explosion-proof air conditioner.
Further, in indoor set, also be provided with motor, this motor with increase the peace box assembly be connected, be the Non-spark flame-proof electric motor.
By the present invention, adopt the explosion-proof air conditioner that comprises following part: off-premises station and indoor set, in off-premises station, be provided with the Flameproof box assembly, the Flameproof box assembly comprises outdoor intrinsic safety type control mainboard, is integrated with safety barrier circuit in the outdoor intrinsic safety type control mainboard; And in indoor set, be provided with and increase peace box assembly and indoor intrinsic safety type control mainboard, increasing the peace box assembly is connected with the Flameproof box assembly, indoor intrinsic safety type control mainboard comprises the intrinsic safety display, one end of intrinsic safety display is connected with outdoor intrinsic safety type control mainboard, solve the low problem of explosion-proof air conditioner safety and reliability, and then reached the high effect of explosion-proof air conditioner safety and reliability.
Description of drawings
The accompanying drawing that consists of the application's a part is used to provide a further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:
Fig. 1 is the block diagram according to the explosion-proof air conditioner of the embodiment of the invention; And
Fig. 2 is the circuit diagram according to the explosion-proof air conditioner of the embodiment of the invention.
The specific embodiment
Need to prove that in the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
Fig. 1 is the block diagram according to the explosion-proof air conditioner of the embodiment of the invention, as shown in Figure 1, this explosion-proof air conditioner comprises off-premises station 100 and indoor set 200, in off-premises station 100, be provided with Flameproof box assembly 5, Flameproof box assembly 5 comprises outdoor intrinsic safety type control mainboard 4, such as W308F2, W523F2, wherein, be integrated with safety barrier circuit in the outdoor intrinsic safety type control mainboard 4, safety barrier circuit adopts the devices such as diode, protective tube to carry out Limited Current, restriction energy, the forceful electric power circuit of mainboard is by Power supply, and the light current circuit is powered by isolating transformer; And in indoor set 200, be provided with and increase peace box assembly 11 and indoor intrinsic safety type control mainboard, increasing peace box assembly 11 is connected via one group of control line with Flameproof box assembly 5, indoor intrinsic safety type control mainboard comprises intrinsic safety display 14, and an end of intrinsic safety display 14 is connected via another group control line with outdoor intrinsic safety type control mainboard 4.
In this embodiment, be provided with the outdoor intrinsic safety type control mainboard 4 that is integrated with safety barrier circuit at off-premises station 100, and this outdoor intrinsic safety type control mainboard 4 is arranged in the Flameproof box assembly 5, so that the strong power part of air conditioner control system is moved on to the control mainboard of off-premises station by the control mainboard of indoor set, and carry out flame proof through Flameproof box assembly 5 and process, correspondingly, the display board of indoor set 200 is set to intrinsic safety display 14, thereby the indoor intrinsic safety type control mainboard of indoor set 200 does not comprise strong power part, do not need extra guard grating to isolate, and do not need to be installed in the explosion-proof tank, improved the security of explosion-proof air conditioner, reliability and assembling.
Preferably, also be provided with the temperature module in the off-premises station 100, be connected with outdoor intrinsic safety type control mainboard 4, whether the surface temperature for detection of the compressor 7 of explosion-proof air conditioner surpasses 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 surface temperature that detects the compressor 7 of explosion-proof air conditioner when the temperature module surpasses the first preset temperature value, outdoor intrinsic safety type control mainboard 4 sends instruction quits work compressor 7, prevents from that compressor 7 surface temperatures are too high to cause igniting damp.
In this embodiment; the temperature module that off-premises station 100 detects with intrinsic safety; comprehensively detect by exhaust, pipe temperature and environment temperature to air-conditioner; can protect according to certain temperature spot or the temperature section that are arranged on 120-135 ℃; when the temperature module detects above this temperature spot or temperature section; outdoor intrinsic safety type control mainboard 4 sends instruction quits work compressor 7; can prevent that compressor 7 surface temperatures from surpassing 135 ℃ of the temperature limits of complete machine explosive-proof grade regulation, improved the safety and reliability of explosion-proof air conditioner.
Preferably, in off-premises station 100, also be provided with explosion-proof cross valve 6, explosion-proof cross valve 6 comprises temperature sensing device and electromagnetic valve coil, wherein, temperature sensing device and electromagnetic valve coil are fixed together, whether the temperature for detection of electromagnetic valve coil surpasses the second preset temperature value, when the temperature of the electromagnetic valve coil that detects when temperature sensing device surpasses the second preset temperature value, temperature sensing device opens circuit, after outdoor intrinsic safety type control mainboard 4 detects the break signal that is caused by overtemperature, send instruction explosion-proof cross valve 6 is quit work.
In this embodiment; by temperature sensing device and electromagnetic valve coil are fixed together; so that outdoor explosion-proof cross valve 6 has temperature protection function; wherein; temperature sensing device can be thermal cut-off, temperature limiter or temperature-sensitive bag etc.; water envelope or plastic packaging together with electromagnetic valve coil, can protect according to certain temperature spot or the temperature section that are arranged on 120-135 ℃, prevent that the electromagnetic valve coil surface temperature from surpassing 135 ℃ of the temperature limits of complete machine explosive-proof grade regulation.When protection temperature spot that the electromagnetic valve coil temperature surpass to be set, temperature sensing device opens circuit, and after mainboard detects break signal, sends instruction explosion-proof cross valve is quit work, and prevents from that the magnetic valve surface temperature is too high to cause igniting damp.
Preferably, also be 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 the Non-spark fire-proof motor.
In this embodiment, outdoor motor adopts the Non-spark motor, such as explosion-proof asynchronous machine YDK82-6T, the no-spark motor is on the basis of common electric machine, sealed coil by increase, change lead-out wire into cable etc., make motor satisfy the requirement of Non-spark explosion-proof criteria, adopt the Non-spark fire-proof motor to have the advantage that security is good, cost is low and easy to assembly.
Preferably, in off-premises station 100, also be provided with: high voltage protective switch 9, be used for the high voltage protective to explosion-proof air conditioner, be connected with outdoor intrinsic safety type control mainboard 4; And low-voltage protective switch 10, be used for the low-voltage variation to explosion-proof air conditioner, be connected with outdoor intrinsic safety type control mainboard 4.
In this embodiment, by the high-low pressure protection switch is set, so that explosion-proof air conditioner has the high-low pressure defencive function, security is higher.Cross when low or too high at system pressure, the action of high-low pressure protection switch execute protection when outdoor intrinsic safety type control mainboard 4 detects the guard signal that is produced by the protection action, is sent instruction compressor is shut down.
Preferably, in indoor set 200, also be provided with individual event asynchronous motor 12, with increase the peace box assembly 11 be connected, motor is the Non-spark flame-proof electric motor.
In this embodiment, the indoor electric motivation adopts the Non-spark motor, such as explosion-proof plastic packaging YKBH11-4-2347, adopts the 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, also be provided with room temperature environment temperature-sensitive bag 13, be connected with the other end of intrinsic safety display 14, can carry out temperature protection to intrinsic safety display 14.
Fig. 2 is the circuit diagram according to the explosion-proof air conditioner of the embodiment of the invention, and as shown in Figure 2, outdoor intrinsic safety type control mainboard 4 comprises non-intrinsically safe circuit and intrinsically safe circuit, and wherein, intrinsically safe circuit comprises: mainboard MCU governor circuit, intrinsic safety power supply and intrinsic safety 485 telecommunication circuits.
Mainboard MCU governor circuit comprises: main control MCU power supply safety grid circuit.
The intrinsic safety power supply comprises with intrinsic safety 485 telecommunication circuits: the safety barrier circuit and the safety barrier circuit of communicating by letter of the safety barrier circuit of display board power supply, the power supply of communicating by letter, adopt intrinsic safety 485 telecommunication circuits to transmit the signals such as temperature and control function, have the transmission information amount greatly, the advantage of feature richness.
As shown in Figure 2, increase the peace box assembly and also comprise: increase peace case, terminal plate, blower fan electric capacity, electric capacity adopts the electric capacity with lead-out wire, and back panel wiring all is that screw connects, electric spark or the superheating phenomenon of avoiding unreliable connection to produce.The 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 and high voltage protective switch 10 are connected with outdoor intrinsic safety type control mainboard 4 respectively.Control circuit is realized in the following manner: complete machine adopts outdoor power supply, is arranged on the individual event asynchronous motor 12 of indoor set 100 by outdoor mainboard control rotating speed, connects by multicore connecting line between the indoor and outdoor controller.
Explosion-proof air conditioner of the present invention has adopted flame proof, has increased peace, intrinsic safety, water the multiple explosion-proof technologies such as envelope, Non-spark, the outdoor intrinsic safety type control mainboard integrated security grid circuit of off-premises station, thereby can remove the forceful electric power parts of indoor set mainboard, the indoor set mainboard does not need extra guard grating to isolate, and the indoor set display board is set to the intrinsic safety display, make indoor mainboard not need to be installed in the explosion-proof tank, improve the security of complete machine, simplify the complete machine control circuit; Simultaneously, motor does not adopt the flame-proof type explosion-proof technology, adopts the Non-spark motor, increases the security of explosion-proof air conditioner; By the temperature module is set, make off-premises station that exhaust temperature-sensitive defencive function and magnetic valve overheat protection function be arranged; Adopt carrier communication mode between the indoor and outdoor machine, advanced technology, reliability is high.Adopt explosion-proof air conditioner of the present invention, can improve security, reliability, the assembling of complete machine, reduce simultaneously cost.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and 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 modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. an explosion-proof air conditioner comprises off-premises station (100) and indoor set (200), it is characterized in that,
Be provided with Flameproof box assembly (5) in described off-premises station (100), described Flameproof box assembly (5) comprises outdoor intrinsic safety type control mainboard (4), wherein, is integrated with safety barrier circuit in the described outdoor intrinsic safety type control mainboard (4); And
In described indoor set (200), be provided with to increase and pacify box assembly (11) and indoor intrinsic safety type control mainboard, wherein:
The described peace box assembly (11) that increases is connected with described Flameproof box assembly (5),
Described indoor intrinsic safety type control mainboard comprises intrinsic safety display (14), and an end of described intrinsic safety display (14) is connected with described outdoor intrinsic safety type control mainboard (4).
2. explosion-proof air conditioner according to claim 1, it is characterized in that, described outdoor intrinsic safety type control mainboard (4) comprises non-intrinsically safe circuit and intrinsically safe circuit, and wherein, described intrinsically safe circuit comprises: mainboard MCU governor circuit, intrinsic safety power supply and intrinsic safety 485 telecommunication circuits.
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 power supply comprises with intrinsic safety 485 telecommunication circuits: the safety barrier circuit and the safety barrier circuit of communicating by letter of the safety barrier circuit of display board power supply, the power supply of communicating by letter.
5. explosion-proof air conditioner according to claim 1 is characterized in that, also comprises:
The temperature module is arranged in the described off-premises station (100), is connected with described outdoor intrinsic safety type control mainboard (4), whether surpasses the first preset temperature value for detection of the surface temperature of the compressor (7) of described explosion-proof air conditioner,
Wherein, when described outdoor intrinsic safety type control mainboard (4) surpasses the first preset temperature value for the surface temperature that detects described compressor (7) when described the temperature module, send control instruction described compressor (7) is quit work.
6. explosion-proof air conditioner according to claim 5 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).
7. explosion-proof air conditioner according to claim 1 is characterized in that, also comprises:
Explosion-proof cross valve (6), be arranged in the 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, whether the temperature for detection of described electromagnetic valve coil surpasses the second preset temperature value
Wherein, when described outdoor intrinsic safety type control mainboard (4) surpasses the second preset temperature value for the temperature that detects described electromagnetic valve coil when described temperature sensing device, send control instruction described explosion-proof cross valve (6) is quit work.
8. explosion-proof air conditioner according to claim 1, it is characterized in that, also be provided with explosion-proof fan electromotor (8) in described off-premises station (100), described explosion-proof fan electromotor (8) is connected with described Flameproof box assembly (5), is the Non-spark fire-proof motor.
9. explosion-proof air conditioner according to claim 1 is characterized in that, also is provided with in described off-premises station (100):
High voltage protective switch (9) is connected with described outdoor intrinsic safety type control mainboard (4), is used 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 mainboard (4), is used for the low-voltage variation to described explosion-proof air conditioner.
10. explosion-proof air conditioner according to claim 1, it is characterized in that, also be provided with motor (12) in described indoor set (200), described motor (12) is connected with the described peace box assembly (11) that increases, and is the Non-spark flame-proof electric motor.
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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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| CN201110201001.9A CN102889638B (en) | 2011-07-18 | 2011-07-18 | Explosion-proof air conditioner |
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| CN102889638A true CN102889638A (en) | 2013-01-23 |
| CN102889638B CN102889638B (en) | 2015-03-18 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| 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 |
| US10332697B2 (en) | 2014-09-16 | 2019-06-25 | 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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| CN102889638B (en) | 2015-03-18 |
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