EP4552192A1 - Schaltschrankanordnung mit zwangsbelüftung - Google Patents
Schaltschrankanordnung mit zwangsbelüftungInfo
- Publication number
- EP4552192A1 EP4552192A1 EP23741251.5A EP23741251A EP4552192A1 EP 4552192 A1 EP4552192 A1 EP 4552192A1 EP 23741251 A EP23741251 A EP 23741251A EP 4552192 A1 EP4552192 A1 EP 4552192A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- control cabinet
- air
- fan
- cabinet housing
- interior
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/005—Arrangement or mounting of control or safety devices of safety devices
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
- H05K7/20318—Condensers
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20536—Modifications to facilitate cooling, ventilating, or heating for racks or cabinets of standardised dimensions, e.g. electronic racks for aircraft or telecommunication equipment
- H05K7/206—Air circulating in closed loop within cabinets wherein heat is removed through air-to-air heat-exchanger
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20536—Modifications to facilitate cooling, ventilating, or heating for racks or cabinets of standardised dimensions, e.g. electronic racks for aircraft or telecommunication equipment
- H05K7/20618—Air circulating in different modes under control of air guidance flaps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
- F25B2500/22—Preventing, detecting or repairing leaks of refrigeration fluids
- F25B2500/222—Detecting refrigerant leaks
Definitions
- the invention is based on a control cabinet arrangement with at least one control cabinet housing and a cooling device, the cooling device having a refrigerant circuit containing a flammable refrigerant.
- the refrigerant circuit has an evaporator, which is arranged in an internal air circuit of the cooling device and through which air contained in the control cabinet housing flows.
- control cabinet arrangements known from the prior art have the disadvantage that they are comparatively complex to implement, since, for example, various, actively driven closing elements are required and must be activated when a leak is detected or when a flammable refrigerant enters the interior of the control cabinet.
- control cabinet arrangement with the features of claim 1.
- Advantageous embodiments are the subject of the dependent claims. Accordingly, in a control cabinet arrangement of the type described above, it is provided that it has forced ventilation of the control cabinet housing, which has an activated state and otherwise a deactivated state when a leak in the refrigerant circuit of the cooling device is detected. In the activated state, ambient air of the control cabinet arrangement should be conveyed into the control cabinet housing and/or the air absorbed in the control cabinet housing should be conveyed out of the control cabinet housing.
- the refrigerant circuit can, for example, be part of a refrigeration machine and/or a passive refrigerant circuit, for example a refrigerant circuit in natural circulation, driven by a geodetic height difference, for example a heat pipe. Accordingly, the refrigerant circuit can be designed as an active refrigerant circuit or as a passive circuit. In principle, the invention is not limited to the use of certain processes for cold production. In particular, all means relating to the forced ventilation according to the invention can be designed independently of the refrigerant circuit and in particular it is not necessary to monitor the refrigerant circuit itself in order to conclude that it is leaking.
- the refrigerant circuit can have a condenser in an external air circuit of the cooling device that is fluidically separated from the internal air circuit, with ambient air flowing through the external air circuit flowing through the condenser.
- the forced ventilation can be fluidically closed via an adjustable closing element.
- the interior of the control cabinet housing can be fluidically separated from the ambient air of the control cabinet housing. In particular, there should be no air exchange between the inner air circle and the outer air circle.
- the forced ventilation can have at least one fan with which ambient air is transported into the interior of the control cabinet housing in the activated state of the forced ventilation.
- the fan can be set up to blow out the air contained in the control cabinet housing into the environment.
- the forced ventilation can have at least one air duct between the surroundings of the control cabinet housing and the interior of the control cabinet housing.
- the air duct can be closed via a closing element, preferably a non-return valve, in the deactivated state of the forced ventilation.
- the non-return flap can be biased into its closed position, so that when the fan is deactivated, there is no air volume flow that opens the non-return flap.
- the at least one air duct can be part of the cooling device or can be designed independently of the cooling device. If the air duct is part of the cooling device, at least one further air duct can also be part of the cooling device or part of the control cabinet housing.
- the two air ducts can accordingly be set up to provide air supply into the interior of the control cabinet housing and air removal from the interior into the surroundings of the control cabinet housing. At least one of the air ducts can therefore have a fan.
- the cooling device can have two air ducts, of which at least one air duct has a fan. At least one of the air ducts can have a closing element, preferably a non-return valve.
- the closing element can only be permeable in an air flow direction generated by the fan.
- the closing element can in particular be biased into a closed position in which it closes the air duct in question when the fan is deactivated. Accordingly, the closing member opens when the fan is activated.
- the closing element can therefore be opened in the flow direction generated by the fan and can close the air duct in the opposite direction. In the permeable direction, the closing element, such as a check valve, can open due to the dynamic pressure generated when the fan is activated.
- the control cabinet arrangement can have at least one refrigerant sensor for detecting a flammable refrigerant in the air contained in the interior of the control cabinet housing.
- the refrigerant sensor can in principle be arranged at any point in the control cabinet arrangement, at which the sensor is exposed to the air containing the evaporating refrigerant in the interior of the control cabinet housing in the event of a leak in the refrigerant circuit is. This can be on any side of the control cabinet housing facing the interior.
- the refrigerant sensor can also be arranged on an outside of the cooling device facing the interior.
- the refrigerant sensor can be arranged, for example, in the cooling device, for example in the inner air circuit of the cooling device.
- the refrigerant sensor can be part of a filter fan of the control cabinet arrangement and can be arranged either on a side of the filter fan facing the interior or in an internal area of the filter fan, which is acted upon by the air received in the interior of the control cabinet housing.
- several of the aforementioned refrigerant sensors can be provided, preferably at least two of the redundant refrigerant sensors being arranged at different of the aforementioned mounting positions of the control cabinet arrangement.
- the control cabinet arrangement can have at least one single-channel refrigerant sensor that is sensitive to at least one flammable refrigerant, for example R32, Ri234yf, ri234ze, propane, or butane.
- flammable refrigerant for example R32, Ri234yf, ri234ze, propane, or butane.
- control cabinet arrangement has at least two of the aforementioned refrigerant sensors, it can be provided that the at least two refrigerant sensors are sensitive to at least one identical combustible refrigerant and the two refrigerant sensors can be set up to output their respective sensor signal in a single channel, preferably via the same channel.
- the at least one refrigerant sensor can be set up to forward the detection of a refrigerant in the air received in the interior of the control cabinet housing to a control and regulation unit for initiating a safety measure to reduce a concentration of the refrigerant in the air received in the interior of the control cabinet.
- the control and regulation unit can be arranged outside or inside the control cabinet arrangement, for example outside the control cabinet housing and outside the cooling device, and connected via a signal interface to the at least one refrigerant sensor for signal transmission.
- the control and regulation unit can be set up to transfer the forced ventilation of the control cabinet housing from the deactivated state to the activated state.
- the at least one refrigerant sensor can be set up to forward the detection of a refrigerant in the air contained in the interior of the control cabinet housing to a control and regulation unit arranged in the cooling device.
- the cooling device can be set up to initiate a safety measure to reduce the concentration of the refrigerant in the air absorbed in the interior of the control cabinet, preferably to transfer the forced ventilation of the control cabinet housing from the deactivated state to the activated state.
- the at least one refrigerant sensor can be arranged in an air outlet flow of the inner air circuit from the cooling device into the interior of the control cabinet housing or in an air inlet flow of the outer air circuit from the surroundings of the control cabinet housing into the cooling device.
- the cooling device can have at least one additional fan, from which ambient air from the surroundings of the control cabinet arrangement is sucked into a housing of the cooling device and blown into the interior of the control cabinet housing.
- the cooling device can be set up to be deactivated when a flammable refrigerant is detected by the at least one refrigerant sensor, so that at least one compressor of the cooling device is deactivated.
- the control cabinet arrangement can also have a safety device that is designed to prevent the compressor from accidentally restarting.
- the at least one fan can have a refrigerant sensor which is acted upon by the air contained in the control cabinet housing, wherein the at least one fan is set up for ventilation of the control cabinet housing.
- the air contained in the control cabinet housing can be blown out into the surroundings of the control cabinet housing and air can be blown into the control cabinet housing from the surroundings of the control cabinet housing.
- the control cabinet arrangement can have at least one further fan, which is designed as an inlet or outlet filter fan.
- the at least one fan and the at least one further fan are fans with opposite Flow direction is formed in relation to the interior of the control cabinet housing.
- the at least one fan can be arranged in an opening in a vertical or horizontal wall of the control cabinet housing and can in particular be designed separately from the cooling device.
- the refrigerant sensor can be arranged either in a housing of the at least one fan on a circuit board of a control of the fan or on an outside of the at least one fan and connected to a control of the fan in a wired or wireless manner.
- the refrigerant sensor can be attached to the control cabinet housing inside the control cabinet housing and connected to the fan control via a wireless or wired signal interface.
- the fan may have an alarm output that is configured to output an alarm signal when the fan is transferred from the deactivated state to the activated state.
- the alarm signal provided via the alarm output can be used, for example, for the cascading control of at least one additional fan.
- the fan can have an alarm input that is set up to trigger forced ventilation in the event of an incoming alarm signal.
- the alarm input can be connected wirelessly or wired to an alarm output of another fan in the control cabinet arrangement for the transmission of the alarm signal.
- the forced ventilation can have an air duct in a base of the control cabinet housing, via which the interior of the control cabinet housing is fluidly connected to the environment of the control cabinet housing via the base of the control cabinet housing.
- the air duct in the base can have at least one fan with which, in the activated state of forced ventilation, ambient air is transported into the interior of the control cabinet housing or the air absorbed in the interior of the control cabinet housing is transported out of the interior into the environment.
- the base can be separated from the interior of the storage cabinet housing by at least one base plate.
- the at least one base plate can be permeable to air at least in sections, for example perforated.
- the base plate can therefore form a fluidic transition between the interior of the control cabinet housing and the air duct in the base.
- at least two base plates can be solid, ie designed without openings and arranged at a distance from one another, for example with an air-permeable cable bushing formed between the base plates, which opens into the air duct in the base.
- the fluidic transition can be a breakout in a floor panel, in which a fan is preferably, but not necessarily, mounted. With the fan, either the air absorbed in the interior of the control cabinet housing can be discharged into the environment through the air duct or ambient air can be introduced into the interior of the control cabinet housing.
- the air-permeable base plate can be designed at least in sections as a cable feedthrough through the base plate and/or as an air-permeable fleece, for example a filter substrate.
- a fan can be arranged in a breakout in a flat part of the control cabinet housing, with which either ambient air is blown into the interior of the control cabinet housing or the air taken into the interior is discharged into the surroundings of the control cabinet arrangement.
- Pressure equalization can be provided via the air duct, with either ambient air being fed into the interior or the air absorbed in the interior being discharged into the environment.
- the control cabinet housing can have at least one air inlet or one air outlet, the air inlet or air outlet preferably being designed as a breakout in at least one flat part.
- the flat part can be, for example, a side wall, a rear wall, a door element or a roof element of the control cabinet housing.
- at least one fan is arranged in the breakout, with the control cabinet housing or the base having at least one further air inlet or air outlet, preferably at least one further breakout.
- At least one refrigerant sensor can be used to detect a flammable refrigerant in the base, for example in a housing of a forced ventilation fan and/or in the air duct, or on an upper side of the base facing the control cabinet interior, for example on a base plate of the base, or above the base be arranged in the control cabinet housing.
- the control cabinet arrangement can also have at least one refrigerant sensor, which is arranged in the air duct or is acted upon by the air duct with the air passed through the air duct.
- the air captured in the interior of the control cabinet housing can preferably be discharged into the surroundings of the control cabinet arrangement via the air duct.
- the at least one refrigerant sensor can be part of the fan and exposed on a side of a housing of the fan facing the interior of the control cabinet housing.
- the refrigerant sensor or another refrigerant sensor can be arranged in the interior of the control cabinet housing and connected via a wired or wireless signal interface to a control and regulation unit for transferring the forced ventilation from the deactivated state to the activated state.
- the control and regulation unit can be part of the fan or can be designed independently of the fan.
- the at least one fan can be arranged in a breakout in the roof of the control cabinet housing, the fan being designed to transport the air captured in the interior of the control cabinet housing out of the control cabinet housing.
- the control cabinet housing can preferably have at least one air inlet in a lower region of the control cabinet housing, preferably an opening in a flat part of the control cabinet housing.
- Figure 1 shows a schematic cross-sectional view of an exemplary embodiment of a control cabinet arrangement according to the invention
- Figure 2 shows a schematic representation of a further embodiment of a control cabinet arrangement according to the invention
- Figure 3 shows a schematic representation of yet another embodiment of a control cabinet arrangement according to the invention.
- Figure 4 shows a schematic representation of yet another embodiment of a control cabinet arrangement according to the invention.
- Figure 5 shows a schematic representation of yet another embodiment of a control cabinet arrangement according to the invention.
- Figure 6 shows a schematic representation of yet another embodiment of a control cabinet arrangement according to the invention.
- Figure 7 shows a schematic representation of an exemplary embodiment of a filter fan
- Figure 8 shows yet another embodiment of a filter fan
- Figure 9 shows yet another embodiment of a filter fan.
- the embodiment of a control cabinet arrangement according to the invention shown in Figure 1 is characterized in that all means relating to the forced ventilation according to the invention are integrated into the cooling device 2, in particular a first and a second air duct 12, 13, each of which has a non-return flap 14 and in the first Air duct 12 integrates a fan 10.
- the forced ventilation 6 is designed independently of both the inner air circuit 9 and the outer air circuit 8 of the cooling device 3. In particular, there are no fluidic transitions between the Forced ventilation 6, in particular the air ducts 12, 13 and the inner air circuit 9 and the outer air circuit 8.
- the refrigerant sensor 15 provided for detecting a leak by enriching a flammable refrigerant in the air received in the interior 11 of the control cabinet housing 2 is also arranged on an outside of the cooling device 3 facing the interior 11, via which the cooling device 2 is protected by a vertical side wall or a Rear wall or a door element protrudes into the control cabinet housing 2, so that the inner air circuit 9 is fluidically connected to the air received in the interior 11.
- the cooling device 3 has a refrigeration machine in the known manner, with an evaporator 5 in the inner air circuit 9, a condenser 7 in the outer air circuit 8 and a compressor 18 and an expansion valve.
- the refrigerant sensor 15 or a further refrigerant sensor 15 can be arranged inside the cooling device 3, for example in an air duct of the inner air circuit 9, for example in the area of an opening through which the inner air circuit 9 opens into the interior 11 of the control cabinet housing 2.
- a corresponding sensor signal can be recorded by the control and regulation unit 16, evaluated and converted into a corresponding control signal for triggering the forced ventilation according to the invention become.
- detection of the threshold value being exceeded would cause the fan 10 to start.
- the fan 10 in the air duct 12 is set up to blow in ambient air from the surroundings of the control cabinet arrangement 1 through the air duct 12 into the interior 11 of the control cabinet housing 2.
- the closing element 14 is in the present case designed as a check valve, which can be opened in the flow direction generated by the fan 10.
- the check valve has a preload in its closed position, so that when the fan 10 is deactivated, the first air duct 12 is closed. Analogously, the check valve 14 in the second air duct 13 is biased into its closed position. If an overpressure is generated in the control cabinet interior 11 via the fan 10 by opening the non-return flap 14 in the first air duct 12, the non-return flap 14 opens in the second air duct 13 against its bias, so that the overpressure in the control cabinet housing 2 can be reduced.
- the one in the Air received in the control cabinet interior 11 and charged with the flammable refrigerant is blown out via the second air duct 13, and therefore through the housing 17 of the cooling device 3 into the surroundings of the control cabinet arrangement 1, so that a critical threshold value for the concentration of the flammable refrigerant in the control cabinet arrangement 1 is exceeded for safety reasons Atmosphere in the interior 11 of the control cabinet housing 2 is avoided.
- the control cabinet housing 2 stands on a base 20.
- This can be a standard control cabinet base on which the frame of the control cabinet housing is placed.
- the forced ventilation has an air duct 19 in the base 20, via which the interior 11 of the control cabinet housing 2 is fluidly connected to the surroundings of the control cabinet arrangement 1.
- three fans 10 are arranged in the base 20, in particular as part of the air duct 19.
- the fans 10 are set up to either suck in ambient air into the air duct 19 and blow it into the interior 11 via floor panels 21 or to blow out the air taken in the interior 11 through the floor panels 21 and the air duct 19 into the environment in the opposite air duct direction.
- the fans 10 can be designed as filter fans and close off the air duct 19 to the surroundings of the control cabinet arrangement 1.
- the floor plates 21 can be fluidly permeable, for example perforated, and form the end of the air duct 19 directed towards the interior 11.
- a refrigerant sensor 15 can be provided in the area of the base, in particular the floor panels.
- the refrigerant sensor can also be arranged in the air duct, for example in an air duct.
- the refrigerant sensor 15 can be arranged above the base in the control cabinet housing, for example on an inside of a flat part of the control cabinet housing 2 facing the interior.
- the base 20 also has a cable bushing 26, which is fluidly separated from the air duct 19. Via the cable entry 26, lines from the surroundings of the control cabinet arrangement 1 can be introduced through the base 19 into the interior 11.
- the control cabinet housing 2 has an opening 20 on its flat parts, in particular on its side walls, on its rear wall, on its front wall or door, or on its roof. It is not absolutely necessary that, as shown in Figure 2, all of the flat parts have a respective opening 20. Fewer through-bridges 20 are also conceivable.
- the openings 20 can serve for an additional supply of fresh air or for discharging air containing refrigerant, in particular for pressure equalization when the fans 10 of the air duct 19 in the base 20 are activated.
- at least one of the breakouts 20 can have an additional fan 27, for example a filter fan.
- the forced ventilation has a fan 10 in the roof of the control cabinet housing 2 and an air inlet or air outlet 23 in a side wall of the housing 2.
- a refrigerant sensor 15 is arranged inside the control cabinet housing and is connected to the control and regulation unit 16 via a signal line.
- the open-loop and closed-loop control unit 16 is set up to activate the fan 10 when the refrigerant sensor 15 detects that a threshold value for a refrigerant concentration in the air taken in in the interior 11 of the control cabinet housing 2 is exceeded.
- the fan 10 can be set up to either blow ambient air into the interior 11, so that the air inlet or air outlet 23 actually has the function of an air outlet, or to blow out the air taken in the interior 11 from the control cabinet housing 2, so that the air inlet or air outlet 23 has the function of an air inlet.
- the air duct 19 in the base 20 in contrast to the embodiment according to Figure 2, for the air transfer between the air duct 19 in the base 20, instead of perforated base plates, at least one breakout is provided in a base plate, into which at least one fan is inserted.
- the fan 10 also has the refrigerant sensor 15. Deviating from this, however, the refrigerant sensor 15 may not be part of the fan 10 and may, for example, be connected to the fan 10 in the manner described with reference to FIG.
- the open-loop and closed-loop control unit (not shown) is part of the fan 10 and is implemented as a compact structural unit with the fan 10. Accordingly, the air duct has an air inlet or air outlet at its end facing the surroundings of the control cabinet arrangement 1 23, which can be, for example, a breakout of the base 20 closed by a filter insert, for example a filter substrate.
- the fan 10 in the embodiment shown in FIG. 5 is arranged in a breakout in a door element of the control cabinet housing 2.
- the refrigerant sensor is part of the fan 10, which can in particular be designed as a filter fan that is inserted in a cutout of a flat part of the control cabinet housing.
- An additional air inlet or air outlet 23 is required to equalize the pressure.
- the air inlet or outlet is also preferably closed by a filter mat so that the relevant IP protection classes can be maintained.
- Embodiments 7 to 9 describe in particular a fan 10, which is accommodated in a housing 28 including the control and regulation unit 16 required for activation in the event of a leak in a uniform housing 28.
- the fan 10 can be designed, for example, as a filter fan, which, as shown, is mounted in a cutout in the control cabinet housing 2.
- the control cabinet housing 2 has a filter element 30 on an air inlet side, for example a fleece, which closes the air inlet to the environment.
- the refrigerant sensor 15 is part of the regulation and control unit 16, for example arranged on a circuit board of the latter.
- an alarm output is provided in the housing 28 for forwarding an alarm signal which has been generated from the signal from the sensor 15 by the regulation and control unit 16, for example in order to control further filter fans, which themselves do not have a sensor 15 and no related regulation and control electronics.
- an alarm input 25 can be provided to control the fan 10 if the sensor 15 assigned to the fan 10 itself has not detected a leak, but another sensor (not shown) of another fan or a sensor arranged at another location in the control cabinet housing has already detected one leakage has detected, for example because the other sensor is arranged closer to the location of the leak than the sensor 15 shown in Figure 7.
- the senor 15 is arranged outside the housing of the inlet or outlet filter fan 28, for example at any point in the interior 11 of the control cabinet housing 2.
- a connection point 32 of the inlet or outlet filter fan 28 is wired or wirelessly connected to the sensor 15 in the interior 11.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Power Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Patch Boards (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022116776.3A DE102022116776B3 (de) | 2022-07-05 | 2022-07-05 | Schaltschrankanordnung mit zwangsbelüftung |
| PCT/DE2023/100468 WO2024008231A1 (de) | 2022-07-05 | 2023-06-22 | Schaltschrankanordnung mit zwangsbelüftung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4552192A1 true EP4552192A1 (de) | 2025-05-14 |
Family
ID=87280887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23741251.5A Pending EP4552192A1 (de) | 2022-07-05 | 2023-06-22 | Schaltschrankanordnung mit zwangsbelüftung |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US20250379424A1 (de) |
| EP (1) | EP4552192A1 (de) |
| JP (1) | JP2025521563A (de) |
| CN (1) | CN119366073A (de) |
| CA (1) | CA3257854A1 (de) |
| DE (1) | DE102022116776B3 (de) |
| MX (1) | MX2024016058A (de) |
| TW (1) | TWI886502B (de) |
| WO (1) | WO2024008231A1 (de) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29901658U1 (de) | 1999-02-03 | 2000-07-13 | Burn, Heinz, Stüsslingen | Modulares Schaltschranksystem zur Aufnahme elektrischer und elektronischer Aggregate |
| DE202008014474U1 (de) | 2008-10-31 | 2008-12-24 | Seifert Mtm Systems Malta Ltd. | Klimatisierungsvorrichtung für Schaltschränke |
| DE102009029392A1 (de) | 2009-09-11 | 2011-03-24 | WESKA Kälteanlagen GmbH | Explosionsgeschützte Kälteanlage mit brennbarem Kältemittel |
| TWI518294B (zh) * | 2012-09-28 | 2016-01-21 | 國立勤益科技大學 | A cooling device with visual contents |
| DE102018109604B4 (de) | 2018-04-20 | 2019-10-31 | Rittal Gmbh & Co. Kg | Schaltschrankanordnung mit Sicherheitsfunktion sowie ein entsprechendes Verfahren |
| DE102019119871A1 (de) * | 2019-07-23 | 2021-01-28 | Vaillant Gmbh | Vorrichtung und Verfahren zur Belüftung einer Wärmepumpe |
-
2022
- 2022-07-05 DE DE102022116776.3A patent/DE102022116776B3/de active Active
-
2023
- 2023-06-22 EP EP23741251.5A patent/EP4552192A1/de active Pending
- 2023-06-22 JP JP2024575378A patent/JP2025521563A/ja active Pending
- 2023-06-22 CN CN202380047279.6A patent/CN119366073A/zh active Pending
- 2023-06-22 US US18/876,739 patent/US20250379424A1/en active Pending
- 2023-06-22 WO PCT/DE2023/100468 patent/WO2024008231A1/de not_active Ceased
- 2023-06-22 CA CA3257854A patent/CA3257854A1/en active Pending
- 2023-06-28 TW TW112124155A patent/TWI886502B/zh active
-
2024
- 2024-12-18 MX MX2024016058A patent/MX2024016058A/es unknown
Also Published As
| Publication number | Publication date |
|---|---|
| TWI886502B (zh) | 2025-06-11 |
| US20250379424A1 (en) | 2025-12-11 |
| CA3257854A1 (en) | 2025-04-09 |
| CN119366073A (zh) | 2025-01-24 |
| JP2025521563A (ja) | 2025-07-10 |
| MX2024016058A (es) | 2025-02-10 |
| TW202413865A (zh) | 2024-04-01 |
| WO2024008231A1 (de) | 2024-01-11 |
| DE102022116776B3 (de) | 2023-11-02 |
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