CN115986909B - Constant-temperature box-type uninterrupted power supply - Google Patents
Constant-temperature box-type uninterrupted power supply Download PDFInfo
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- CN115986909B CN115986909B CN202310041723.5A CN202310041723A CN115986909B CN 115986909 B CN115986909 B CN 115986909B CN 202310041723 A CN202310041723 A CN 202310041723A CN 115986909 B CN115986909 B CN 115986909B
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Abstract
The invention discloses a constant-temperature box-type uninterruptible power supply, which comprises a power supply box, a functional module and a cooling device, wherein the functional module is arranged in the power supply box; the cooling device comprises an air cooling device, the air cooling device comprises a radiating pipe arranged in the upper space, two ends of the radiating pipe are respectively communicated with the lower space through connecting pipes, and a fan is further arranged on the radiating pipe; the box body is also provided with a constant pressure component; the box cover can be opened relative to the box body, and the box body and/or the box cover are/is also provided with a ventilation device. By adopting the scheme, the performance maintenance of the radiating structure of the uninterruptible power supply is convenient, so that the performance stability of the uninterruptible power supply is maintained.
Description
Technical Field
The invention relates to the technical field of power supplies, in particular to a constant-temperature box-type uninterruptible power supply.
Background
An Uninterruptible Power Supply (UPS) is a power supply device with an energy storage device, and is mainly used for occasions where the requirement on the stability of the power supply is high, the power supply is powered off in the city, and the power support is needed to be provided for an electric appliance, so that the power failure of the electric appliance is avoided. The structure of the uninterruptible power supply generally comprises a rectifier, an inverter, a battery and a control unit, wherein the battery is used as an energy storage device of the uninterruptible power supply, the influence of the use occasion on the heat dissipation of the uninterruptible power supply is considered, the related heat dissipation design of the uninterruptible power supply is generally required, and the heat dissipation can relate to any one or more of the rectifier, the inverter, the battery and the control unit.
Taking the design of battery heat dissipation as an example, the uninterrupted power supply can generate heat in the operation process, especially under the conditions of increasing the discharge times, increasing the discharge depth and larger discharge current of the battery, the battery can be in a high-temperature working state, the service life of the battery can be shortened, the maintenance period of the uninterrupted power supply is influenced, the performance reliability of the uninterrupted power supply is influenced, and the unplanned power failure condition of the electric equipment is caused. For electronic devices such as rectifiers and inverters, air cooling measures are generally required to be set to avoid overhigh temperature in the working process.
In the prior art, as the application number is CN 201720223843.7, the invention creates a patent application document with the name of a water supplementing and water cooling UPS power supply, a technical scheme comprising an air cooling device and a water cooling device is provided; the invention provides a technical scheme for realizing forced cooling by adopting saltpeter in a patent application document with the application number of CN202210834799.9 and the name of constant-temperature uninterruptible power supply cabinet.
Further structural improvement on the uninterruptible power supply so as to enable the uninterruptible power supply to have more stable performance is an important direction for developing uninterruptible power supply technology for a person skilled in the art.
Disclosure of Invention
The invention provides a constant-temperature box-type uninterruptible power supply aiming at the technical problem that the uninterruptible power supply is further improved in structure so as to have more stable performance, which is an important direction of development of uninterruptible power supply technology by a person skilled in the art.
Aiming at the problems, the constant-temperature box-type uninterruptible power supply provided by the invention solves the problems through the following technical points: the constant-temperature box-type uninterrupted power supply comprises a power supply box and a functional module arranged in the power supply box, and further comprises a cooling device for cooling the functional module, wherein the power supply box comprises a box body and a box cover, a first partition plate is arranged in the box body, the first partition plate divides the internal space of the power supply box into an upper space and a lower space, the lower space is a closed space, and the functional modules are all positioned in the lower space;
the cooling device comprises an air cooling device, the air cooling device comprises a radiating pipe arranged in an upper space, two ends of the radiating pipe are respectively communicated with a lower space through connecting pipes, a fan is further arranged on the radiating pipe and used for driving gas, so that the gas enters the radiating pipe through one connecting pipe and is discharged through the other connecting pipe;
The box body is also provided with a constant pressure component which is used for realizing pressure equalizing between the lower space and the external air pressure of the power supply box;
the case cover can be opened relative to the case body, and the case body and/or the case cover are/is also provided with a ventilation device which is used for realizing gas exchange between the upper space and the outside of the power supply case.
As a person skilled in the art, the functional module is other components except for the power-on box, which are used for forming the uninterruptible power supply, and according to the configuration design of the uninterruptible power supply, the functional module may specifically include a filter installed in front of the rectifying component, a filter installed behind the inverting component, the rectifying component, the inverting component, a bypass switch, a waveform detection module, a control module and the like, and according to the specific setting mode of the rectifying component, the functional module may further include a charger specifically used for charging the storage battery.
Compared with the prior art, the power supply box structure is characterized in that the performance maintenance of the heat dissipation structure of the uninterruptible power supply is convenient through the specific power supply box structure form, the installation mode of the functional module in the power supply box and the setting mode of the air cooling device, so that the performance stability of the uninterruptible power supply is maintained.
Specifically, the mode that the lower space is a closed space, the functional module is arranged in the lower space, the air cooling device is a radiating pipe matched with a connecting pipe is arranged, and the specific working mode is as follows: the functional module works in the lower space, the air cooling device is used for cooling the lower space in an air-cooling mode: under the effect of the fan, air enters into the radiating pipe through one of the connecting pipes, air flowing through the radiating pipe is hot fluid and radiates heat at the position of the radiating pipe, and the radiated air returns into the lower space through the other connecting pipe so as to be used for cooling the functional modules in the lower space, namely, the air in the lower space circulates through the air cooling device.
The above structural form and the working mode aim to realize: when the scheme is applied to an environment with more air, dust can be prevented from covering the surface of the functional module in the working process of the uninterruptible power supply to influence the air cooling effect of the functional module, and the problems of safety and inconvenient treatment caused by dust removal operation on the functional module are avoided; the air cooling device is different from the existing mode of adopting a filter screen to be matched with a fan, and can effectively avoid the influence on ventilation quantity caused by the aggravation of the filter screen blockage, so that the heat dissipation capacity of the air cooling device is reduced; because the cooling tube is the part that is independent of function module work, when the cooling tube outer wall need carry out the surface clearance in order to ensure forced air cooling device radiating effect to can not influence uninterrupted power source itself work and do not exist like the safety problem such as electric shock, owing to need not consider function module protection, protection against electric shock problem, clear up the characteristics that still have the treatment effeciency height to the cooling tube outer wall. Otherwise, by arranging the constant-pressure component, the problems of manufacturing cost, size stability of a power supply box and the like caused by pressure difference between the lower space and an external environment due to temperature change in the lower space can be avoided, and the sealing performance of the closed space is increased and ensured; the box cover is arranged to be openable relative to the box body, so that the surface dust removal maintenance of the radiating pipe is facilitated, and the ventilation device is arranged to strengthen the radiating effect of the radiating pipe through air convection; the heat radiating pipe is arranged in the upper space, so that the dust enrichment speed on the heat radiating pipe caused by natural sedimentation of dust in the atmosphere is reduced, and meanwhile, the heat radiating capability of the heat radiating pipe is reduced due to temperature rise caused by direct sunlight can be avoided.
In the concrete implementation, the box cover can be connected to the box body in a turnover way, and can also be connected to the box body through bolts. As a person skilled in the art, the purpose of the constant pressure assembly is to provide an air pressure equalizing function, and in particular, an equalizing valve may be used, or a duct may be directly used, but the duct has a greater probability of dust entering the lower space than the equalizing valve, so that it is preferable to use a single equalizing valve or a plurality of equalizing valves. The ventilating device preferably adopts a forced ventilation scheme to obtain a better cooling effect of the radiating pipe by changing the ventilation quantity according to specific cooling requirements, the current environment temperature or the current radiating capacity of the radiating pipe, and can adopt the first fan as an exhaust fan for exhausting air flow from the upper space to the external environment aiming at the first fan proposed below, and a filter screen for blocking dust from entering the upper space is arranged on an air inlet of the upper space.
Meanwhile, as a person skilled in the art, the constant temperature emphasized by the scheme is understood to be that the uninterruptible power supply has a working temperature control function, and the working temperature can be returned to a set temperature area or a set temperature value through the air cooling performance exerted by the air cooling device, so that the scheme is considered to exert the constant temperature purpose.
The further technical scheme is as follows:
to enhance the convective strength of the airflow at the surface of the functional module, it is set as follows: the lower space is also provided with a second baffle plate which is used for limiting the flow direction of the gas in the lower space, so that the gas forms a flow path positioned in the lower space under the action of the second baffle plate after entering the lower space through one connecting pipe and enters the radiating pipe through the other connecting pipe;
the functional module comprises a rectifying component, a storage battery and an inversion component, wherein the rectifying component, the storage battery and the inversion component are arranged at different positions of the flow path. In this case, the flow direction of the air flow in the lower space is defined by the second partition plate to form the flow path. Preferably, in view of the influence of temperature variations on the different functional components, in particular on the performance and lifetime of the battery, to improve the performance and reliability of the battery, provision is made for: a space dedicated to the installation of the battery is formed in the lower space by the second partition, and the connection pipe has a pipe orifice in the space for supplying air cooled by the radiating pipe to the space.
As a radiating pipe form with large radiating area and simple structure, set as: the radiating pipe is a coil pipe exposed in the upper space.
As a specific scheme for forcibly cooling the upper space, there is provided: the ventilation device comprises a first fan arranged on the box body, the first fan is driven by a motor, the ventilation device further comprises a controller for controlling the rotating speed of the motor, the ventilation device further comprises a temperature sensor for detecting the temperature in the lower space, and the detection value of the temperature sensor is used as a control signal of the controller: when the actual temperature in the lower space is greater than the set temperature, the controller controls the motor to accelerate rotation.
Different from the inverter assembly and the rectifying assembly, the factors influencing the performance and the reliability of the storage battery are more, such as: the discharge times, the discharge power of each discharge, the discharge depth, the temperature experienced in the working period and the like, and the performance and the reliability of the storage battery directly influence the performance and the reliability of the uninterruptible power supply, in order to avoid the uninterruptible power supply from causing unplanned outage to the electric appliance, the storage battery is preferably provided with a cooling scheme independent of the air cooling device, so the cooling scheme is set as follows: the functional module comprises a battery box for mounting a storage battery, the battery box is of a groove-shaped structure surrounded by a side edge and a bottom edge, and the side edge and/or the bottom edge is of a sandwich structure with a sandwich space arranged therein;
Still include cold-storage subassembly and fluid conveying equipment, fluid conveying equipment is used for carrying cold fluid to be connected with battery case and cold-storage subassembly and form cold fluid circulation flow path, make cold fluid circulate between cold-storage subassembly and battery case: the interlayer space is used as a component part of a cold fluid circulation flow path, and cold fluid releases heat when flowing through the cold storage assembly. According to the scheme, when the uninterruptible power supply is connected to the utility power grid in operation, the cold accumulation assembly can accumulate cold according to specific settings in normal operation of the utility power grid, when the power supply is powered off and the temperature of a storage battery exceeds the set temperature in the discharging process through the temperature sensor, cold fluid is used as a heat transfer medium through the fluid conveying equipment, when the cold fluid flows through the interlayer space, the battery box is cooled, the cold fluid absorbing the heat of the battery box releases heat when returning to the cold accumulation assembly, and the cold fluid has lower temperature to absorb the heat of the battery box when returning to the battery box. The battery box is applied to the installation battery, and because the ability that cold-storage subassembly cooperation fluid conveying equipment can reach the reduction battery box temperature, the battery box of this moment not only can fix the battery, can form the cooling jacket that is used for carrying out refrigerated battery in the periphery of battery simultaneously. The specific form of the battery box is convenient for installing the storage battery, and meanwhile, the battery box is low in processing and manufacturing difficulty and good in shape retaining capability.
As a specific implementation manner of the cold storage assembly, the method is as follows: the cold accumulation assembly comprises a liquid storage tank and a semiconductor refrigerating sheet arranged on the outer side of the bottom of the liquid storage tank, and the heat absorption end of the semiconductor refrigerating sheet is attached to the bottom surface of the liquid storage tank;
the inner space of the liquid storage tank is used as a component part of the cold fluid circulation flow path;
the outside of the liquid storage tank is also wrapped with a heat insulation layer. According to the scheme, when the battery box is in operation, liquid fluid flowing through the interlayer space and cooling the battery box is stored in the liquid storage box, liquid with a certain volume can be stored in the liquid storage box, the liquid can be water, heat conducting oil and the like, the temperature of the fluid in the liquid storage box is reduced through the semiconductor refrigerating sheet under the condition that a mains supply network can supply power for the scheme, and the fluid in the liquid storage box is extracted by the fluid conveying equipment under the condition that the battery box is required to cool the battery box, so that the fluid returns to the liquid storage box after passing through the interlayer space, and the purpose of forced cooling of the battery box can be achieved through circulation. The utility power grid is arranged to provide power for the semiconductor refrigerating sheet, so that the problem that the power supply capacity of the uninterrupted power supply is reduced due to the fact that the electric energy in the storage battery serves the cold accumulation assembly is solved. The thermal insulation layer is intended to reduce the power consumption of the cold storage assembly. Meanwhile, the cold storage component can exert the cooling function of the battery box for a long time after the liquid filling of the liquid storage tank is completed in the scheme, so that the cold storage component provided in the scheme has the characteristic of no maintenance.
As another implementation manner of the cold accumulation assembly, the cold accumulation assembly is set as follows: the cold accumulation assembly comprises a heat absorption plate and a semiconductor refrigerating sheet, and the semiconductor refrigerating sheet is used for absorbing heat on the heat absorption plate;
the heat absorbing plate is used as a component part of the boundary of the cold fluid circulation flow path. In the prior art, under the condition that the storage battery does not have serious performance attenuation, the charging process generally does not cause the overhigh temperature, the discharging process aims at maintaining the current requirement of electric equipment, when the discharging current is large, the condition that the working temperature of the storage battery is overhigh easily occurs, and the fluid conveying equipment is more likely to work in the discharging process of the storage battery. Therefore, the power component on the fluid conveying equipment needs to be powered by the storage battery, and is different from the application of driving gas circulation, the power component has higher power consumption by adopting the mode of circulating liquid, the time of the uninterrupted power supply for serving the electric appliance is reduced, and based on the conception, the scheme provides a mode which is different from the liquid storage tank for storing liquid and realizes cold storage through the liquid. When the cold storage assembly is used for reducing the temperature of the heat absorption plate, when the temperature of the storage battery is required to be reduced through the cold storage assembly, circulating air flow is formed in the cold fluid circulating flow path, the circulating air flow flows through the interlayer space and the heat absorption plate, absorbs heat when flowing through the interlayer space and releases heat when flowing through the heat absorption plate, and the cold energy stored by the heat absorption plate can be used for reducing the temperature of the battery box. By adopting the scheme, the power consumption of the fluid conveying equipment is lower during working, the power supply capacity of the scheme to the electric appliance can be guaranteed, and meanwhile, the cold accumulation by adopting the heat absorbing plate can effectively guarantee the cold energy storage quantity.
As the further technical scheme adopting the heat absorbing plate scheme, the following steps are adopted: the semiconductor refrigerating plate is arranged at the outer side of the bottom of the fluid box, and the heat absorbing end of the semiconductor refrigerating plate is attached to the bottom surface of the fluid box;
the fluid box is provided with a cavity above the heat absorbing plate, and the cavity is used as a component part of the cold fluid circulation flow path;
the outside of the fluid box is also wrapped with a heat insulation layer. By adopting the scheme, the closed cold fluid circulation flow path is conveniently formed, and meanwhile, if the heat absorbing plate with higher density is adopted, the heat absorbing plate is convenient to install; the heat insulation layer is favorable for reducing the power consumption of the semiconductor refrigerating sheet.
More complete, set to: the storage battery is arranged in the battery box;
a gap is formed between the side wall of the storage battery and the inner wall of the battery box;
the heat conducting agent is filled in the gap;
the sealing strip is used for sealing the upper end of the gap, and is an annular sealing ring extending around the circumferential direction of the storage battery;
the sealing strip is fixed between the battery box and the storage battery through an annular groove arranged on the inner wall of the battery box. Considering that the storage battery possibly exists in the whole life cycle of the uninterruptible power supply is replaced and maintained, the storage battery is preferably arranged to be detachable and assembled relative to the battery box, and the scheme of directly embedding the storage battery into the battery box is characterized by simple structure and convenient assembly and disassembly, and the factors unfavorable for heat dissipation are the air gap between the storage battery and the battery box, so that the adverse effect of the air gap on heat dissipation of the storage battery is solved, the structure is arranged, and the scheme is specifically applied to: after the storage battery is arranged in the battery box, the heat conducting agent is poured into the gap, so that the storage battery is convenient to detach, the adopted heat conducting agent is always kept in a liquid state, water, heat conducting oil and the like can be adopted, and the water is easy to evaporate, so that the heat conducting oil is preferably adopted, but the heated heat conducting oil is contacted with air for a long time to cause the heat conducting performance to be reduced, and the scheme comprising the sealing strip is further adopted, so that the relative isolation or absolute isolation of the heat conducting oil and the air can be effectively realized. The sealing strip is in a specific isolation mode, and the structure is adopted aiming at: the volume change is big after the conduction oil is heated, utilizes the fixed ring seal's of annular groove mode to make the conduction oil take place after the thermal expansion self easily by the extrusion or the gas of conduction oil top is extruded easily, under simple structure's condition for corresponding cooling scheme has sufficient security.
As a battery box structural form with simple structure, convenient preparation and strong shape stability, the battery box structural form is set as: the battery box comprises an outer shell and an inner shell, and the interlayer space is positioned between the outer shell and the inner shell;
the bottom plate of the inner shell is supported on the bottom plate of the outer shell through a plurality of cushion blocks. In the scheme, the outer shell and the inner shell can be both provided with a groove body structure with the edge at the upper part, the upper part of the upper edge of the outer shell is overlapped with the upper edge of the outer shell through the edge folding on the inner shell, and a sealing gasket is paved between the two edges, so that a closed interlayer space can be obtained; the cushion block is designed to facilitate the thinning of the inner shell and the outer shell.
The sealing strip can adopt a rubber sealing ring, the compression amount of each position in the circumferential direction influences the tightness of each position, so the preferred scheme is that the sealing strip matched with the size is arranged according to the installation position of the storage battery in the battery box, or the installation position of the storage battery in the battery box is matched with the size of the sealing strip, but the mode has certain randomness, is favorable for the installation efficiency of parts of the battery box and the assembly quality among the parts, and is set as follows: the battery box is of a box-shaped structure with four side faces, positioning edges protruding outwards relative to the inner wall of the battery box are arranged on the inner wall of each side face, and the storage battery is arranged in an installation space surrounded by the positioning edges. In this scheme, through the installation position of location arris definite battery in the battery case, can obtain unique battery position state in the battery case like this, according to this position state, adopt the sealing strip of definite specification can reach reliable sealed effect.
The invention has the following beneficial effects:
the structural form that this scheme provided aims at realizing: when the scheme is applied to an environment with more air, dust can be prevented from covering the surface of the functional module in the working process of the uninterruptible power supply to influence the air cooling effect of the functional module, and the problems of safety and inconvenient treatment caused by dust removal operation on the functional module are avoided; the air cooling device is different from the existing mode of adopting a filter screen to be matched with a fan, and can effectively avoid the influence on ventilation quantity caused by the aggravation of the filter screen blockage, so that the heat dissipation capacity of the air cooling device is reduced; because the cooling tube is the part that is independent of function module work, when the cooling tube outer wall need carry out the surface clearance in order to ensure forced air cooling device radiating effect to can not influence uninterrupted power source itself work and do not exist like the safety problem such as electric shock, owing to need not consider function module protection, protection against electric shock problem, clear up the characteristics that still have the treatment effeciency height to the cooling tube outer wall. Otherwise, by arranging the constant-pressure component, the problems of manufacturing cost, size stability of a power supply box and the like caused by pressure difference between the lower space and an external environment due to temperature change in the lower space can be avoided, and the sealing performance of the closed space is increased and ensured; the box cover is arranged to be openable relative to the box body, so that the surface dust removal maintenance of the radiating pipe is facilitated, and the ventilation device is arranged to strengthen the radiating effect of the radiating pipe through air convection; the heat radiating pipe is arranged in the upper space, so that the dust enrichment speed on the heat radiating pipe caused by natural sedimentation of dust in the atmosphere is reduced, and meanwhile, the heat radiating capability of the heat radiating pipe is reduced due to temperature rise caused by direct sunlight can be avoided.
Drawings
FIG. 1 is a cross-sectional view of one embodiment of a constant temperature box uninterruptible power supply according to the present disclosure;
FIG. 2 is a top view of a constant temperature box uninterruptible power supply according to one embodiment of the present disclosure, reflecting the assembled relationship between the battery compartment and the battery;
FIG. 3 is a cross-sectional view of a constant temperature box-type uninterruptible power supply according to one embodiment of the present invention, reflecting the structure of a battery case;
fig. 4 is a cross-sectional view of a constant temperature box-type uninterruptible power supply according to an embodiment of the present invention, reflecting a structure of a cold storage assembly using a heat absorbing plate.
Wherein, the reference numerals are respectively as follows: 1. the box cover, 2, the first fan, 3, the box body, 4, the constant voltage component, 5, the inversion component, 6, the third partition board, 7, the fluid conveying equipment, 8, the cold accumulation component, 9, the semiconductor refrigerating sheet,
10. the heat-dissipating tube comprises a heat-dissipating tube body 11, a first partition plate 12, a battery box 13, a second partition plate 14, a rectifying component 15, a connecting tube 16, a sealing strip 17, a storage battery 18, an outer shell 19, a sandwich space 20, an inner shell 21, a positioning edge 22 and a heat-absorbing plate.
Detailed Description
The present invention will be described in further detail with reference to the following examples, but the present invention is not limited to the following examples:
Example 1:
as shown in fig. 1, 2, 3 and 4, the constant-temperature box-type uninterruptible power supply comprises a power supply box and a functional module arranged in the power supply box, and further comprises a cooling device for cooling the functional module, wherein the power supply box comprises a box body 3 and a box cover 1, a first partition plate 11 is arranged in the box body 3, the first partition plate 11 divides the internal space of the power supply box into an upper space and a lower space, the lower space is a closed space, and the functional modules are all positioned in the lower space;
the cooling device comprises an air cooling device, the air cooling device comprises a radiating pipe 10 arranged in an upper space, two ends of the radiating pipe 10 are respectively communicated with the lower space through connecting pipes 15, a fan is further arranged on the radiating pipe 10 and is used for driving gas, so that the gas enters the radiating pipe 10 through one connecting pipe 15 and is discharged through the other connecting pipe 15;
the box body 3 is also provided with a constant pressure component 4, and the constant pressure component 4 is used for realizing pressure equalizing between the lower space and the external air pressure of the power supply box;
the case cover 1 is openable relative to the case body 3, and ventilation devices are further arranged on the case body 3 and/or the case cover 1, and the ventilation devices are used for realizing gas exchange between the upper space and the outside of the power supply case.
As a person skilled in the art, the functional module is other components, except for the power-on box, for forming the uninterruptible power supply, and according to the configuration design of the uninterruptible power supply, the functional module may specifically include a filter installed in front of the rectifying component 14, a filter installed behind the inverting component 5, the rectifying component 14, the inverting component 5, a bypass switch, a waveform detection module, a control module, and the like, and according to the specific setting mode of the rectifying component 14, the functional module may also include a charger specifically used for charging the storage battery 17.
Compared with the prior art, the power supply box structure is characterized in that the performance maintenance of the heat dissipation structure of the uninterruptible power supply is convenient through the specific power supply box structure form, the installation mode of the functional module in the power supply box and the setting mode of the air cooling device, so that the performance stability of the uninterruptible power supply is maintained.
Specifically, the lower space is a closed space, the functional module is installed in the lower space, the air cooling device is a mode that the radiating pipe 10 is matched with the connecting pipe 15, and the specific working mode is as follows: the functional module works in the lower space, the air cooling device is used for cooling the lower space in an air-cooling mode: under the action of the fan, air enters the radiating pipe 10 through one connecting pipe 15, the air flowing through the radiating pipe 10 is hot fluid and radiates heat at the position of the radiating pipe 10, and the radiated air returns to the lower space through the other connecting pipe 15 so as to be used for cooling the functional modules in the lower space, namely, the air in the lower space circulates through the air cooling device.
The above structural form and the working mode aim to realize: when the scheme is applied to an environment with more air, dust can be prevented from covering the surface of the functional module in the working process of the uninterruptible power supply to influence the air cooling effect of the functional module, and the problems of safety and inconvenient treatment caused by dust removal operation on the functional module are avoided; the air cooling device is different from the existing mode of adopting a filter screen to be matched with a fan, and can effectively avoid the influence on ventilation quantity caused by the aggravation of the filter screen blockage, so that the heat dissipation capacity of the air cooling device is reduced; because cooling tube 10 is the part that is independent of function module work, when cooling tube 10 outer wall need carry out the surface clearance in order to ensure forced air cooling device radiating effect, can not influence uninterrupted power source itself work and do not exist like the safety problem such as electric shock, owing to need not consider function module protection, protection against electric shock problem, clear up cooling tube 10 outer wall still has the characteristics that the treatment effeciency is high. Otherwise, by arranging the constant-pressure component 4, the problems of manufacturing cost, size stability of a power supply box and the like caused by pressure difference between the lower space and an external environment due to temperature change in the lower space can be avoided, and the sealing performance of the closed space is increased and ensured; the case cover 1 is arranged to be openable relative to the case body 3 for facilitating the surface dust removal maintenance of the radiating pipe 10, and the ventilation device is arranged to strengthen the radiating effect of the radiating pipe 10 by air convection; the radiating pipe 10 is disposed in the upper space in order to reduce the dust concentration rate on the radiating pipe 10, for example, due to natural sedimentation of dust in the atmosphere, while preventing the heat radiation capability of the radiating pipe 10 from being lowered due to temperature rise caused by direct sunlight.
In a specific implementation, the case cover 1 may be connected to the case body 3 in a reversible manner, or may be connected to the case body 3 by bolts. As a person skilled in the art, the purpose of the constant pressure assembly 4 is to provide an air pressure equalizing function, and in particular, an equalizing valve may be used, or a duct may be directly used, but the duct has a greater probability of dust entering the lower space than the equalizing valve, so that it is preferable to use a single equalizing valve or a plurality of equalizing valves. The ventilating device preferably adopts a forced ventilation scheme to obtain a better cooling effect of the radiating pipe 10 by changing the ventilation amount according to specific cooling requirements, the current environment temperature or the radiating capacity of the radiating pipe 10, and for the first fan 2 proposed below, the first fan 2 can be used as an exhaust fan for exhausting air flow from the upper space to the external environment, and a filter screen for blocking dust from entering the upper space is arranged on an air inlet of the upper space.
Meanwhile, as a person skilled in the art, the constant temperature emphasized by the scheme is understood to be that the uninterruptible power supply has a working temperature control function, and the working temperature can be returned to a set temperature area or a set temperature value through the air cooling performance exerted by the air cooling device, so that the scheme is considered to exert the constant temperature purpose.
Example 2:
this example was further refined on the basis of example 1:
to enhance the convective strength of the airflow at the surface of the functional module, it is set as follows: a second partition plate 13 is further arranged in the lower space, and the second partition plate 13 is used as a baffle plate for limiting the flow direction of the gas in the lower space, so that the gas forms a flow path positioned in the lower space under the action of the second partition plate 13 after entering the lower space through one connecting pipe 15, and enters the radiating pipe 10 through the other connecting pipe 15;
the functional module comprises a rectifying component 14, a storage battery 17 and an inversion component 5, wherein the rectifying component 14, the storage battery 17 and the inversion component 5 are arranged at different positions of the flow path. In this case, the flow direction of the air flow in the lower space is defined by the second partition 13 to form the flow path. Preferably, in view of the influence of temperature variations on the different functional components, in particular on the performance and lifetime of the battery 17, in order to improve the performance and reliability of the battery 17, it is provided that: a space dedicated to the installation of the battery 17 is formed in the lower space by the second partition 13, and the connection pipe 15 has a pipe orifice in the space for supplying air cooled through the radiating pipe 10 to the space.
Example 3:
this example was further refined on the basis of example 1:
as a form of the radiating pipe 10 having a large radiating area and a simple structure, there is provided: the radiating pipe 10 is a coil exposed in the upper space.
As a specific scheme for forcibly cooling the upper space, there is provided: the ventilation device comprises a first fan 2 arranged on a box body 3, the first fan 2 is driven by a motor, and meanwhile, the ventilation device further comprises a controller for controlling the rotating speed of the motor, and further comprises a temperature sensor for detecting the temperature in a lower space, wherein the detection value of the temperature sensor is used as a control signal of the controller: when the actual temperature in the lower space is greater than the set temperature, the controller controls the motor to accelerate rotation.
Example 4:
this example was further refined on the basis of example 1:
different from the inverter assembly 5 and the rectifier assembly 14, factors affecting the performance and reliability of the storage battery 17 are more, such as: the number of discharge times, the discharge power and the depth of discharge of each discharge, the temperature experienced in the working period and the like, and the performance and the reliability of the storage battery 17 directly influence the performance and the reliability of the uninterruptible power supply, in order to avoid the uninterruptible power supply from causing unplanned outage to the electric appliance, the storage battery 17 is preferably provided with a cooling scheme independent of the air cooling device, so the cooling scheme is set as follows: the functional module comprises a battery box 12 for installing a storage battery 17, the battery box 12 is of a groove-shaped structure surrounded by a side edge and a bottom edge, and the side edge and/or the bottom edge is of a sandwich structure with a sandwich space 19 arranged therein;
The cold storage device further comprises a cold storage assembly 8 and a fluid conveying device 7, wherein the fluid conveying device 7 is used for conveying cold fluid and is connected with the battery box 12 and the cold storage assembly 8 to form a cold fluid circulation flow path, so that the cold fluid circulates between the cold storage assembly 8 and the battery box 12: the intermediate space 19 serves as a component of the cold fluid circulation flow path, and the cold fluid releases heat when flowing through the cold storage assembly 8. According to the scheme, when the uninterruptible power supply is connected to a commercial power grid in operation, the cold accumulation assembly 8 performs cold accumulation according to specific settings when the commercial power grid can normally work, when the commercial power grid is powered off and the temperature of the storage battery 17 exceeds the set temperature in the discharging process through a temperature sensor, the fluid is used as a heat transfer medium through the fluid conveying equipment 7, the battery box 12 is cooled when the fluid flows through the interlayer space 19, the heat of the battery box 12 is released when the fluid which absorbs the heat of the battery box 12 returns to the cold accumulation assembly 8, and the fluid has lower temperature to better absorb the heat of the battery box 12 when returning to the battery box 12. The battery case 12 is used for installing the storage battery 17, and the cold accumulation assembly 8 is matched with the fluid conveying equipment 7 to achieve the capacity of reducing the temperature of the battery case 12, so that the battery case 12 can fix the storage battery 17, and a cooling sleeve for cooling the storage battery 17 can be formed on the periphery of the storage battery 17. The specific form of the battery box 12 is convenient for installing the storage battery 17, and meanwhile, the processing and manufacturing difficulties are low, and the shape retaining capability is good.
Example 5:
this example was further refined on the basis of example 4:
as a specific implementation of the cold storage assembly 8, it is provided that: the cold accumulation assembly 8 comprises a liquid storage tank and a semiconductor refrigerating sheet 9 arranged on the outer side of the bottom of the liquid storage tank, and the heat absorption end of the semiconductor refrigerating sheet 9 is attached to the bottom surface of the liquid storage tank;
the inner space of the liquid storage tank is used as a component part of the cold fluid circulation flow path;
the outside of the liquid storage tank is also wrapped with a heat insulation layer. According to the scheme, when the scheme works, liquid fluid flowing through the interlayer space 19 and cooling the battery box 12 is stored in the liquid storage box, a certain volume of liquid can be stored in the liquid storage box, the liquid can be water, heat conducting oil and the like, under the condition that a mains supply power grid can supply power for the scheme, the temperature of the fluid in the liquid storage box is reduced through the semiconductor refrigerating sheet 9, and under the condition that the battery box 12 is required to cool the storage battery 17, the fluid in the liquid storage box is extracted by the fluid conveying equipment 7, and the fluid returns to the liquid storage box after passing through the interlayer space 19, so that the purpose of forced cooling of the battery box 12 can be achieved through circulation. The utility power grid is arranged to supply power to the semiconductor refrigeration piece 9, so that the power supply capacity of the uninterrupted power supply is prevented from being reduced due to the fact that the electric energy in the storage battery 17 serves the cold storage assembly 8. The thermal barrier is intended to reduce the power consumption of the cold storage assembly 8. Meanwhile, the cold accumulation assembly 8 can exert the cooling function of the battery box 12 for a long time after the liquid filling of the liquid storage tank is completed in the scheme, so that the cold accumulation assembly 8 provided in the scheme has the characteristic of no maintenance.
Example 6:
this example was further refined on the basis of example 4:
as another implementation of the cold accumulation assembly 8, it is provided that: the cold accumulation assembly 8 comprises a heat absorption plate 22 and a semiconductor refrigerating sheet 9, wherein the semiconductor refrigerating sheet 9 is used for absorbing heat on the heat absorption plate 22;
the absorber plate 22 serves as an integral part of the boundary of the cold fluid circulation flow path. In the prior art, under the condition that the storage battery 17 has no serious performance attenuation, the charging process generally cannot cause the temperature to be too high, the discharging process aims at maintaining the current requirement of the electric equipment, when the discharging current is large, the condition that the working temperature of the storage battery 17 is too high easily occurs, and the fluid conveying equipment 7 is more likely to work in the discharging process of the storage battery 17. In this way, the power components on the fluid delivery device 7 need to be powered by means of the accumulator 17, and different from the use of driving gas circulation, the adoption of the above-mentioned circulating liquid mode will enable the power components to have higher power consumption, which will reduce the time for the uninterruptible power supply to serve the electric appliance. In specific use, the semiconductor refrigeration sheet 9 is used for reducing the temperature of the heat absorbing plate 22, when the temperature of the storage battery 17 needs to be reduced through the cold storage assembly 8, circulating air flows through the interlayer space 19 and the heat absorbing plate 22 by forming circulating air flow in the cold fluid circulation flow path, absorbs heat when flowing through the interlayer space 19 and releases heat when flowing through the heat absorbing plate 22, and the cooling capacity stored by the heat absorbing plate 22 can be used for reducing the temperature of the battery box 12. By adopting the scheme, the lower power consumption of the fluid conveying equipment 7 in working can ensure the power supply capacity of the scheme to the electric appliance, and meanwhile, the cold accumulation by adopting the heat absorbing plate 22 can effectively ensure the cold energy storage quantity.
Example 7:
this example was further refined on the basis of example 6:
as a further technical scheme of adopting the heat absorbing plate 22 scheme above: the fluid box is characterized by further comprising a closed fluid box, wherein the heat absorbing plate 22 is arranged in the fluid box, the fluid box further comprises a semiconductor refrigerating sheet 9 arranged on the outer side of the bottom of the fluid box, and the heat absorbing end of the semiconductor refrigerating sheet 9 is attached to the bottom surface of the fluid box;
the fluid box has a cavity above the absorber plate 22 as part of the cold fluid circulation flow path;
the outside of the fluid box is also wrapped with a heat insulation layer. By adopting the scheme, the closed cold fluid circulation flow path is conveniently enclosed, and meanwhile, if the heat absorbing plate 22 with higher density is adopted, the heat absorbing plate 22 is convenient to install; the heat insulation layer is arranged to reduce the power consumption of the semiconductor refrigeration piece 9.
Example 8:
this example was further refined on the basis of example 4:
more complete, set to: also comprises a storage battery 17 arranged in the battery box 12;
a gap is formed between the side wall of the storage battery 17 and the inner wall of the battery box 12;
the heat conducting agent is filled in the gap;
the battery pack further comprises a sealing strip 16 for closing the upper end of the gap, wherein the sealing strip 16 is an annular sealing ring extending along the circumferential direction of the battery 17;
The sealing strip 16 is fixed between the battery case 12 and the storage battery 17 through an annular groove provided on the inner wall of the battery case 12. Considering that the storage battery 17 possibly exists in the whole life cycle of the uninterruptible power supply is replaced and maintained, the storage battery 17 is preferably arranged to be detachable and assembled relative to the battery box 12, and the scheme of directly embedding the storage battery 17 into the battery box 12 has the characteristics of simple structure and convenient assembly and disassembly, and the factor of being unfavorable for heat dissipation is an air gap between the storage battery 17 and the battery box 12, so as to solve the adverse effect of the air gap on heat dissipation of the storage battery 17, the structure is arranged, and the scheme is specifically applied as follows: after the storage battery 17 is installed in the battery box 12, the heat conducting agent is poured into the gap, so that the storage battery 17 is conveniently removed, the adopted heat conducting agent is always kept in a liquid state, water, heat conducting oil and the like can be adopted, and water is easy to evaporate, so that the heat conducting oil is preferably adopted, but the heated heat conducting oil can be contacted with air for a long time to cause the heat conducting performance to be reduced, and the scheme comprising the sealing strip 16 is further adopted, so that the relative isolation or absolute isolation of the heat conducting oil and the air can be effectively realized. The above sealing strip 16 is a specific isolation mode, and this structure is adopted for the purpose of: the volume change is big after the conduction oil is heated, utilizes the fixed ring seal's of annular groove mode to make the conduction oil take place after the thermal expansion self easily by the extrusion or the gas of conduction oil top is extruded easily, under simple structure's condition for corresponding cooling scheme has sufficient security.
Example 9:
this example was further refined on the basis of example 8:
as a structural form of the battery case 12, which is simple in structure, convenient in preparation, and strong in shape stability of the battery case 12, it is provided that: the battery box 12 comprises an outer shell 18 and an inner shell 20, and the interlayer space 19 is positioned between the outer shell 18 and the inner shell 20;
the bottom plate of the inner housing 20 is supported on the bottom plate of the outer housing 18 by a plurality of spacer blocks. In this solution, the outer casing 18 and the inner casing 20 may be both configured to have a groove structure with a side above, and the folded edges on the inner casing 20 are stacked above the folded edges on the outer casing 18, and a sealing gasket is laid between the two sides, so as to obtain a closed interlayer space 19; the above arrangement of the spacer blocks is intended to facilitate the thinning of the inner and outer shells 18.
Example 10:
this example was further refined on the basis of example 8:
the sealing strips 16 may be rubber sealing rings, and the compression amount of each position in the circumferential direction will affect the tightness of each position, so the preferred scheme is to set up the sealing strips 16 with matched dimensions according to the installation position of the storage battery 17 in the battery box 12, or to match the installation position of the storage battery 17 in the battery box 12 according to the dimensions of the sealing strips 16, but this way has a certain randomness, so as to be beneficial to the installation efficiency of part of the battery box 12 and the assembly quality between parts, and set up as follows: the battery case 12 has a box-like structure with four sides, positioning ribs 21 protruding outwards relative to the inner wall of the battery case 12 are arranged on the inner wall of each side, and the storage battery 17 is arranged in an installation space surrounded by the positioning ribs 21. In this embodiment, the mounting position of the battery 17 in the battery case 12 is determined by the positioning ribs 21, so that a single position state of the battery 17 in the battery case 12 can be obtained, from which a reliable sealing effect can be achieved by using sealing strips 16 of defined dimensions.
The foregoing is a further detailed description of the invention in connection with specific preferred embodiments, and it is not intended that the invention be limited to these descriptions. Other embodiments of the invention, which are apparent to those skilled in the art to which the invention pertains without departing from its technical scope, shall be covered by the protection scope of the invention.
Claims (9)
1. The constant-temperature box-type uninterrupted power supply comprises a power supply box and a functional module arranged in the power supply box, and further comprises a cooling device for cooling the functional module, and is characterized in that the power supply box comprises a box body (3) and a box cover (1), a first partition board (11) is arranged in the box body (3), the first partition board (11) divides the inner space of the power supply box into an upper space and a lower space, the lower space is a closed space, and the functional modules are all positioned in the lower space;
the cooling device comprises an air cooling device, the air cooling device comprises a radiating pipe (10) arranged in an upper space, two ends of the radiating pipe (10) are respectively communicated with a lower space through connecting pipes (15), a fan is further arranged on the radiating pipe (10), and the fan is used for driving gas, so that the gas enters the radiating pipe (10) through one connecting pipe (15) and is discharged through the other connecting pipe (15);
The box body (3) is also provided with a constant pressure component (4), and the constant pressure component (4) is used for realizing pressure equalizing between the lower space and the external air pressure of the power supply box;
the box cover (1) can be opened relative to the box body (3), and the box body (3) and/or the box cover (1) are/is also provided with a ventilation device which is used for realizing gas exchange between the upper space and the outside of the power supply box;
the lower space is also provided with a second baffle plate (13), the second baffle plate (13) is used as a baffle plate for limiting the flow direction of gas in the lower space, so that the gas forms a flow path positioned in the lower space under the action of the second baffle plate (13) after entering the lower space through one connecting pipe (15), and enters the radiating pipe (10) through the other connecting pipe (15);
the functional module comprises a rectifying component (14), a storage battery (17) and an inversion component (5), wherein the rectifying component (14), the storage battery (17) and the inversion component (5) are arranged at different positions of the flow path.
2. A constant temperature box uninterruptible power supply according to claim 1, wherein the radiating pipe (10) is a coil exposed in the upper space;
The ventilation device comprises a first fan (2) arranged on the box body (3).
3. A constant temperature box-type uninterruptible power supply according to claim 1, characterized in that the functional module comprises a battery box (12) for mounting a storage battery (17), the battery box (12) is a groove-shaped structure surrounded by a side edge and a bottom edge, and the side edge and/or the bottom edge is a sandwich-type structure in which a sandwich space (19) is arranged;
still include cold-storage component (8) and fluid delivery equipment (7), fluid delivery equipment (7) are used for carrying cold fluid to be connected with battery case (12) and cold-storage component (8) and form cold fluid circulation flow path, make cold fluid circulate between cold-storage component (8) and battery case (12): the intermediate space (19) is used as a component of a cold fluid circulation flow path, and cold fluid releases heat when flowing through the cold storage assembly (8).
4. A constant temperature box-type uninterruptible power supply according to claim 3, wherein the cold accumulation assembly (8) comprises a liquid storage tank and a semiconductor refrigerating sheet (9) arranged on the outer side of the bottom of the liquid storage tank, and the heat absorption end of the semiconductor refrigerating sheet (9) is attached to the bottom surface of the liquid storage tank;
The inner space of the liquid storage tank is used as a component part of the cold fluid circulation flow path;
the outside of the liquid storage tank is also wrapped with a heat insulation layer.
5. A constant temperature box uninterruptible power supply according to claim 3, wherein the cold storage assembly (8) comprises a heat absorbing plate (22) and a semiconductor refrigeration piece (9), the semiconductor refrigeration piece (9) being used for absorbing heat on the heat absorbing plate (22);
the absorber plate (22) is provided as a component of the boundary of the cold fluid circulation flow path.
6. The constant temperature box-type uninterruptible power supply according to claim 5, further comprising a closed fluid box, wherein the heat absorbing plate (22) is installed in the fluid box, and further comprising a semiconductor refrigerating sheet (9) installed on the outer side of the bottom of the fluid box, wherein the heat absorbing end of the semiconductor refrigerating sheet (9) is attached to the bottom surface of the fluid box;
the fluid box is provided with a cavity above the heat absorbing plate (22), and the cavity is used as a component part of the cold fluid circulation flow path;
the outside of the fluid box is also wrapped with a heat insulation layer.
7. A constant temperature box uninterruptible power supply according to claim 3, further comprising a battery (17) mounted in the battery compartment (12);
A gap is formed between the side wall of the storage battery (17) and the inner wall of the battery box (12);
the heat conducting agent is filled in the gap;
the battery pack also comprises a sealing strip (16) for sealing the upper end of the gap, wherein the sealing strip (16) is an annular sealing ring extending along the circumferential direction of the battery (17);
the sealing strip (16) is fixed between the battery box (12) and the storage battery (17) through an annular groove arranged on the inner wall of the battery box (12).
8. A constant temperature box uninterruptible power supply according to claim 7, wherein the battery box (12) comprises an outer housing (18) and an inner housing (20), the interlayer space (19) being located between the outer housing (18) and the inner housing (20);
the bottom plate of the inner shell (20) is supported on the bottom plate of the outer shell (18) through a plurality of cushion blocks.
9. A constant temperature box-type uninterruptible power supply according to claim 7, wherein the battery case (12) has a box-like structure having four sides, positioning ribs (21) protruding outwardly with respect to the inner wall of the battery case (12) are provided on the inner wall of each side, and the storage battery (17) is mounted in a mounting space surrounded by the positioning ribs (21).
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| CN202310041723.5A CN115986909B (en) | 2023-01-11 | 2023-01-11 | Constant-temperature box-type uninterrupted power supply |
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| CN202310041723.5A CN115986909B (en) | 2023-01-11 | 2023-01-11 | Constant-temperature box-type uninterrupted power supply |
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| CN115986909B true CN115986909B (en) | 2023-10-20 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000232792A (en) * | 1999-02-09 | 2000-08-22 | Fuji Electric Co Ltd | Uninterruptible power supply |
| CN102858141A (en) * | 2012-09-12 | 2013-01-02 | 江苏大学 | Dispersive heat radiation type thermostat for field instruments |
| CN211209369U (en) * | 2019-12-20 | 2020-08-07 | 鼎世新(北京)科技有限公司 | UPS power box convenient to heat dissipation |
| CN216013514U (en) * | 2021-07-02 | 2022-03-11 | 大连优易科电子技术有限公司 | UPS uninterrupted power source unbalanced three phase check out test set |
| CN216162462U (en) * | 2021-09-07 | 2022-04-01 | 陕西中消国安电力工程有限公司 | UPS uninterrupted power source case for high tension switchgear |
-
2023
- 2023-01-11 CN CN202310041723.5A patent/CN115986909B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000232792A (en) * | 1999-02-09 | 2000-08-22 | Fuji Electric Co Ltd | Uninterruptible power supply |
| CN102858141A (en) * | 2012-09-12 | 2013-01-02 | 江苏大学 | Dispersive heat radiation type thermostat for field instruments |
| CN211209369U (en) * | 2019-12-20 | 2020-08-07 | 鼎世新(北京)科技有限公司 | UPS power box convenient to heat dissipation |
| CN216013514U (en) * | 2021-07-02 | 2022-03-11 | 大连优易科电子技术有限公司 | UPS uninterrupted power source unbalanced three phase check out test set |
| CN216162462U (en) * | 2021-09-07 | 2022-04-01 | 陕西中消国安电力工程有限公司 | UPS uninterrupted power source case for high tension switchgear |
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| CN115986909A (en) | 2023-04-18 |
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